Ex Parte Van Steenberge et alDownload PDFPatent Trial and Appeal BoardMar 23, 201813502566 (P.T.A.B. Mar. 23, 2018) Copy Citation UNITED STA TES p A TENT AND TRADEMARK OFFICE APPLICATION NO. FILING DATE 13/502,566 11129/2012 53609 7590 03/27/2018 REINHART BOERNER VAN DEUREN P.C. 2215 PERRYGREEN WAY ROCKFORD, IL 61107 FIRST NAMED INVENTOR Nele Van Steenberge UNITED STATES DEPARTMENT OF COMMERCE United States Patent and Trademark Office Address: COMMISSIONER FOR PATENTS P.O. Box 1450 Alexandria, Virginia 22313-1450 www .uspto.gov ATTORNEY DOCKET NO. CONFIRMATION NO. 509183 1198 EXAMINER KOSHY, JOPHY STEPHEN ART UNIT PAPER NUMBER 1733 NOTIFICATION DATE DELIVERY MODE 03/27/2018 ELECTRONIC Please find below and/or attached an Office communication concerning this application or proceeding. The time period for reply, if any, is set in the attached communication. Notice of the Office communication was sent electronically on above-indicated "Notification Date" to the following e-mail address( es): RockMail@reinhartlaw.com PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE BEFORE THE PATENT TRIAL AND APPEAL BOARD Ex parte NELE VAN STEENBERGE, MARC LEVEAUX, LODE DUPREZ, and PHILIPPE GOUSSELOT Appeal2017-006940 Application 13/502,566 Technology Center 1700 Before ADRIENE LEPIANE HANLON, DONNA M. PRAISS, and JEFFREY R. SNAY, Administrative Patent Judges. PRAISS, Administrative Patent Judge. DECISION ON APPEAL 1 Appellants2 appeal under 35 U.S.C. § 134 the final rejection of claims 1-12. We have jurisdiction over the appeal pursuant to 35 U.S.C. § 6(b ). We AFFIRM. Appellants' invention is directed to a steel sheet suitable for enamelling. Spec. i-f 1. According to the Specification, the surface quality of an applied enamel layer is influenced by the carbon level of a steel sheet. Id. 1 In this decision we refer to the Specification filed Apr. 18, 2012 ("Spec."), the Final Office Action dated June 3, 2016 ("Final Act."), the Appeal Brief filed Nov. 7, 2016 ("App. Br."), the Examiner's Answer dated Jan. 27, 2017 ("Ans."), and the Reply Brief filed Mar. 27, 2017 ("Reply Br."). 2 Appellants identify the real party in interest as Arcelormittal Investigacion Y Desarrollo SL. App. Br. 2. Appeal2017-006940 Application 13/502,566 i-f 2. A high carbon level at the surface may give rise to CO-gas bubble formation, which appears as black spots and craters on the enamel surface. Id. A sufficiently high carbon level in the bulk of the carbon sheet causes cracks upon cold rolling that are capable of capturing hydrogen entering the steel during the enameling process that would otherwise give rise to "fish- scale" deformation of the enamel. Id. Therefore, superficial decarburization only at the surface of the steel is desired. Id. i-f 3. Claim 1 is illustrative: 1. A rolled steel sheet suitable for enamelling, said sheet having a carbon profile, defined by a gradient in the C-level from a level Csurface at at least one surface of the sheet, to a level Cbulk in the bulk of the sheet, Cbulk being higher than Csurface, and comprising: Cbulk higher than 0 and lower than or equal to 0.08wt%, Csurface between 0 and 0. 015 wt%, Al between 0.012wt% and 0.07wt%, Mn between 0.12wt% and 0.45wt%, 0 lower than 0.01 wt% and optionally: Cu between 0.025wt% and O.lwt%, S between 0.008wt% and 0.04wt%, Ca between 0.0005wt% and 0.005wt%, the balance being Fe and incidental impurities, and wherein the depth where the C-level reaches (Cbulk+Csurface) /2, is higher than 75µm. App. Br. 14 (Claims Appendix). 2 Appeal2017-006940 Application 13/502,566 The following rejections under 35 U.S.C. § 103(a) are on appeal: 1. Claims 1-12 over Matsukura 3; and 2. Claims 1-12 over Kojima. 4 Final Act. 4--9; App. Br. 4. ISSUES The dispositive issues on appeal are whether the Examiner erred in determining that (1) because Cbulk and Csurface are recited as ranges in claim 1, the average of Cbulk and Csurface ( ( Cbulk + Csurface)/2) would also be a range, namely, 0--0.0475wt%., (2) because Matsukura's alloy has a substantially similar composition and method of production as the claimed rolled steel sheet, the property of the claimed depth of higher than 75µm for the average of Cbulk and Csurface would be expected, and (3) because Kojima's alloy has a substantially similar composition and method of production as the claimed rolled steel sheet, the property of the claimed depth of higher than 75µm for the average of Cbulk and Csurface would be expected. FINDINGS OF FACT We find that the following enumerated findings are supported by at least a preponderance of the evidence. Ethicon, Inc. v. Quigg, 849 F .2d 1422, 1427 (Fed. Cir. 1988) (explaining the general evidentiary standard for proceedings before the Office). 3 Matsukura et al., US 3,598,658, iss. Aug. 10, 1971 ("Matsukura"). 4 Kojima, JP 06-279864 A, pub. Oct. 4, 1994 ("Kojima") (citations herein are to the English language machine translation of record which Appellants do not dispute). 3 Appeal2017-006940 Application 13/502,566 The scope and content of the prior art 1. Matsukura is directed to a method of producing a non-oriented electrical steel sheet that can be used for enameling having the following composition: a. 0.06--0.15wt% C content "at the time of tapping," which the Examiner asserts is the value of the claimed Cbulk b. 0.002---0.015wt% C content is the degree to which decarburizing annealing is conducted, which the Examiner finds is the value of the claimed Csurface c. 0.01---0.08wt% Al d. 0.10---0.25wt% Mn, and e. Balance Fe and impurities. Matsukura Abstr., 1 :28---6:57. 2. Kojima is directed to a method of producing a non-oriented electrical steel sheet that can be used for enameling having the following composition: a. 0.01---0.2wt% C content of the Al killed steel sheet for enamel, which the Examiner finds is the value of the claimed Cbulk b. 0.005wt% or less C content resulting from decarburization annealing of cold rolled sheet steel for enameling, which the Examiner finds is the value of the claimed Csurface c. 0.02---0.1 wt% Al d. 0.10---0.5wt% Mn, and e. Balance Fe and impurities. Kojima i-fi-f l-55. 4 Appeal2017-006940 Application 13/502,566 Differences between the claimed subject matter and the prior art 3. The claimed subject matter includes an oxygen content of less than or equal to 0.01 wt%. Matsumura and Kojima, on the other hand, do not add oxygen to the composition, however, Matsumura discloses that molten steel has an oxygen content implying that oxygen is present at impurity levels in steel. Final Act. 5, 7. 4. The claimed subject matter recites "the depth where the C-level reaches (Cbulk+Csurface)/2, is higher than 75µm." Matsumura and Kojima, on the other hand, do not explicitly disclose a C-level according to the recited formula or the depth of the computed C-level. Final Act. 5, 7. The level of skill in the art 5. Neither the Examiner nor Appellants have addressed the level of ordinary skill in the pertinent art of steel sheets suitable for enamelling. We will, therefore, consider the cited prior art as representative of the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) ("[T]he absence of specific findings on the level of skill in the art does not give rise to reversible error 'where the prior art itself reflects an appropriate level and a need for testimony is not shown"' (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985)). Secondary considerations 6. There is no evidence of record of secondary considerations of non- obviousness for our consideration. 5 Appeal2017-006940 Application 13/502,566 ANALYSIS The Examiner rejects claims 1-12 over each of Matsukura and Kojima for the reasons stated on pages 2-9 of the Final Office Action and pages 2-14 of the Answer. We need only address the rejections of claim 1 because Appellants rely upon the same arguments for the patentability of claims 2-12 in this appeal. App. Br. 5-13. Rejection over Matsukura Appellants challenge the rejection of claim 1 over Matsukura by arguing that the Examiner erred in interpreting "C-level reaches (Cbulk+Csurface)/2" as "C-level is between 0 and 0.0475wt%." App. Br. 5. According to Appellants, the claim term is a midpoint level and not simply a number that falls within a range of values because it is defined by levels, specifically the carbon concentration midpoint along the carbon gradient of the enameling sheet that is defined by the particular C-levels Cbulk and Csurface, which are endpoints on the carbon gradient of the enameling sheet. App. Br. 5---6. Appellants present the following graph to illustrate their argument regarding midpoint levels having varying depths. ·:-::e->'Qi % i\<;t%) '! {)._;:-._ ::::·;), ::J4.:f5" 1,_ -· ........ - ....... - •' ... - ,. ,, ,, -· .- -~~·~,~-:-, ;,.,:~-~-:.·:~~~{~:~~~:,,....~ -""' ,i" _ ...... -· ..... ··,.··· _,,• _,.. //' '~·.:, .............. <: ......... 1/2 .~... l .·'' . . , ~ ' ... -. ,, ' -:./- ' ..... >~-:. . "•' ··.:;{" ,.··; ,." ' ./' ,.·· "/ .. __ .>-' >··· .. - .•'. •'' r.:,.··~·: '.· ~:G.L:l ~ r0~~-;~;~ _ _-,·:·:~---~, .. -·- ./ ~ ~~~...:.~ ... ~ .. "'"'~'"'"'~~--~~~--~ . .::~-'!$ rs ;.·75 Ll~;">~t;{~!·::-n~ 6 Appeal2017-006940 Application 13/502,566 According to Appellants, the proffered graph shows that the Examiner's interpretation is an oversimplification because the C-level at a depth higher than 75µm is always higher than 0 and up to 0.0475wt% regardless of the C-profile. Id. at 7. Appellants also contend that Matsukura does not include enough information regarding the decarburization profile in the steel sheet in order to conclude that the claimed midpoint depth necessarily flows from Matsukura's disclosure. Id. at 10. Appellants do not dispute that Fick' s Second Law applies to the diffusion of carbon during decarburization and necessarily creates a carbon gradient through the steel sheet. Id. However, Appellants assert that Fick's Second Law does not resolve what shape the carbon profile of Matsukura will take. Id. Appellants contend that Matsukura does not disclose a carbon level at the surface, but only an average carbon value for the decarburization of the entire sheet (0.002---0.015wt%) without any teaching regarding the depth of decarburization. Id. Appellants additionally contend that the depth of the carbon midpoint can vary widely depending on the conditions outlined in Appellants' Table 2, including decarburization time, annealing temperature, and the partial pressures of water vapour and hydrogen gas in the decarburization atmosphere. Id. at 10-11. The Examiner responds that claim 1 does not require the narrow interpretation asserted by Appellants because Cbulk and Csurface are recited as ranges in the claim, therefore the average of Cbulk and Csurface ((Cbulk+ Csurface)/2) would also be a range, namely, 0---0.0475wt%. Ans. 8. Regarding Appellants' graph, the Examiner notes that the curves do not have any data or mathematical formulas accompanying them to explain the basis for their 7 Appeal2017-006940 Application 13/502,566 construction nor do the claims recite a mathematical expression or formula depicting the curve. Id. at 8-9. Regarding Matsumura, the Examiner responds that solving Fick's second law of diffusion for an initial C level at a time of 0 at a thickness greater than the surface (i.e., bulk) and C level at a time greater than 0 provides a gradient in the carbon level of the steel wherein the bulk is higher than the surface. Id. at 9. The Examiner further responds that Matsukura discloses that its steel starts with a carbon content of 0.06 to 0.15wt% and undergoes decarburization annealing where the surface layer contains 0.002 to 0.015wt%. Id. at 10. As the claimed ranges overlap or lie inside ranges disclosed by the prior art, it would have been obvious to a person of ordinary skill in the art to select the claimed composition since the prior art teaches the same utility over the claimed range. Id. In addition, the Examiner finds the property of the claimed depth of higher than 75µm would be expected of Matsukura's alloy since the prior art has a substantially similar composition, is produced using substantially similar methods, undergoes decarburization annealing as in the instant steel, and is used for a substantially similar process of enameling with no fish scaling issues. Id. The Examiner provides a comparison of Kojima's alloy and production to Appellants' Specification in support. Id. at 11-14. In the Reply Brief, Appellants reassert that the Examiner's claim interpretation is not correct because it is a numerical range rather than a midpoint level. Reply Br. 2. Appellants also reassert that the curves in the graph provided in the Appeal Brief illustrate that not all carbon profiles will satisfy the requirement of claim 1 as the depth where the midpoint is reached can be varied. Id. at 2-3. Regarding Matsukura disclosing or suggesting the 8 Appeal2017-006940 Application 13/502,566 claim limitations, Appellants reassert that Fick' s second law does not provide information on the shape of the carbon profile and the corresponding depth where the midpoint value is reached because the shape "may vary depending on specific decarbur[i]zation conditions." Id. at 4--5. Appellants further contend that the Examiner's citation to Matsukura 6:31--45 does not provide specific decarburization conditions that would inherently disclose the claimed properties of Appellants' invention. Id. at 6. According to Appellants, Table 2 in the Specification provides "ample illustration of the fact that the midpoint depth depends on specific process conditions" that are not disclosed by the cited prior art. Id. We are not persuaded by Appellants' arguments for the reasons stated by the Examiner in the Final Office Action and Answer (Final Act. 4--6; Ans. 8-14 ). We provide the following primarily for emphasis. We interpret examined claims as broadly as is reasonable using ordinary and accustomed term meanings, so as to be consistent with the specification, In re Thrift, 298 F.3d 1357, 1364 (Fed. Cir. 2002), while "taking into account whatever enlightenment by way of definitions or otherwise that may be afforded by the written description contained in applicant's specification," In re Morris, 127 F.3d 1048, 1054 (Fed. Cir. 1997), and without reading limitations from embodiments described in the specification into claims that recite broader language than the embodiment, In re Zietz, 893 F.2d 319, 321-22 (Fed. Cir. 1989). Regarding the claim term "wherein the depth where the C-level reaches (Cbulk+Csurface) /2, is higher than 75µm," it is not disputed that the expression "(Cbulk+Csurface) 12" is the average of the carbon content at the surface and in the bulk of a steel sheet. The Specification defines Csurface as "the minimum value of the C- 9 Appeal2017-006940 Application 13/502,566 profile" (Spec. i-f 23) and Cbulk as equal to the initial C-level where decarburization has not taken place over the entire thickness of the sheet (Spec. i-f 24). Therefore, the Examiner's interpretation of "(Cbulk+Csurface) /2" being defined by a range as computed by the recited ranges for Cbulk and Csurface is reasonable and consistent with the Specification. As discussed further below, the preponderance of the evidence in this record supports the Examiner's findings that Matsukura's steel sheets fall within the C-level midpoint range required by claim 1 and that the depth at the midpoint so calculated for Matsukura's steel sheets would be expected to be greater than 75µm. Appellants' arguments over the prior art are not persuasive because Appellants do not dispute the Examiner's finding (Ans. 10) that Matsukura discloses an initial carbon content of 0.06--0.15wt% which provides a range for Cbulk· Appellants do not adequately rebut the Examiner's finding (Ans. 10) that Matsukura' s disclosure that the steel sheet undergoes decarburization annealing to produce a carbon content of 0.002---0.015wt% means that the carbon content level at the surface layer, i.e., Csurface, is 0.002---0.015wt% and within the claimed range. Appellants' assertion that Matsukura's disclosure of 0.002---0.015wt% refers to an average rather than the carbon content at the surface level (App. Br. 10) is not persuasive because Appellants do not dispute that Fick' s law of diffusion means that decarburization will necessarily create a carbon gradient through the steel sheet (Reply Br. 4). Appellants only dispute that the general shape of the diffusion curve can shift in terms of where the midpoint of the C-level occurs relative to the depth of the steel sheet suitable for enameling (id.). Thus, Appellants do not adequately explain why Matsukura's disclosed 10 Appeal2017-006940 Application 13/502,566 carbon content of 0.002---0.015wt% after decarburization annealing does not disclose or suggest a carbon content at the surface layer that meets the claimed range of "between 0 and 0.015wt%." Appellants acknowledge (App. Br. 10) that the endpoints of the carbon concentration is information relevant to the decarburization profile of Matsukura. Appellants also do not dispute that Matsukura discloses conditions for decarburization (id.), only that Matsukura does not disclose at column 6, lines 31--45, specific conditions of decarburization (Reply Br. 6). Indeed, Matsukura's Example 1 (cited by the Examiner at Final Act. 4 and Ans. 10) describes the decarburizing annealing as occurring in an open-coil annealing furnace at a temperature of 750QC for 5 hours. Matsukura 6:70- 73. The Examiner's citation to Matsukura column 6, lines 31--45 in particular (Ans. 13) was to show that it is within the skill of a skilled artisan to find suitable combinations of decarburizing time and anneal temperature based on the examples provided as Matsukura teaches the carbon content range to achieve with decarburization in the same manner as paragraph 41 of Appellants' Specification. Accordingly, Appellants merely implies but does not argue with sufficient detail that Matsukura lacks details of its decarburization annealing process that differentiates it from Appellants' process. Appellants' argument that Table 2 of the Specification demonstrates that the carbon midpoint can vary with a variety of factors and that the shape of the carbon profile will change depending on the depth of the midpoint (id. at 5) does not adequately address the Examiner's finding (Ans. 8) that Appellants provide no mathematical formulas or data that explains the construction of carbon profile curves. Indeed, Table 2 shows that good 11 Appeal2017-006940 Application 13/502,566 enameling was achieved consistently where the carbon content at the surface was low rather than where the depth was above 7 5 µm. The Specification acknowledges that it was known to decarburize steel only in a layer at the surface of the steel for the purpose of good enameling. Spec. i-f 3. The Specification further ascribes the bad enameling samples reported to "a C level at the surface which is too high." Id. i-f 48. Consequently, Appellants' arguments based on change in the shape of the carbon profile and change depending on the depth of the midpoint have no evidentiary basis to support them. As such, Appellants' graphs present merely attorney argument, which is not a substitute for factually supported objective evidence. See, e.g., In re Huang, 100 F.3d 135, 139-40 (Fed. Cir. 1996); In re De Blauwe, 736 F.2d 699, 705 (Fed. Cir. 1984). As the Examiner finds (Final Act. 4--6), because Matsukura discloses the same composition, including ranges for Cbulk and Csurface that encompass those claimed, the C-level of (Cbulk+Csurface)/2 recited in claim 1 is also met by Matsukura and would be expected also to have the property of a depth higher than 75µm because the composition and method of production are substantially similar. See In re Papesch, 315 F.2d 381, 391(CCPA1963) ("a compound and all of its properties are inseparable"); Perricone v. Medicis Pharmaceutical Corp., 432 F.3d 1368, 1378 (Fed. Cir. 2005) ("If Pereira discloses the very same methods, then the particular benefits must naturally flow from those methods even if not recognized as benefits at the time of Pereira's disclosure."). To the extent that Appellants discovered that decarburization affects the midpoint or average carbon content between the surface and the bulk by some unspecified formula or relationship, the same effect would necessarily occur in the prior art method because Appellants' 12 Appeal2017-006940 Application 13/502,566 decarburization process by which the claimed rolled steel sheet is produced is indistinguishable from the carbonization disclosed in the prior art based on the cited record in this appeal. Cf MEHL/Biophile Int 'l Corp. v. Milgraum, 192 F.3d 1362, 1366 (Fed. Cir. 1999) ("Where, as here, the result is a necessary consequence of what was deliberately intended [by the prior art], it is of no import that the [prior art]' s authors did not appreciate the results."). In sum, Appellants have not provided enough information to rebut the Examiner's finding that the prior art has a substantially similar composition, is produced using substantially similar methods, undergoes decarburization annealing as in the instant steel, and is used for a substantially similar process of enameling with no fish scaling issues. In the absence of a more detailed explanation, we are not convinced of error on the part of the Examiner in concluding the claimed invention would have been obvious within the meaning of 35 U.S.C. § 103(a). See In re Jung, 637 F.3d 1356, 1365 (Fed. Cir. 2011). For the foregoing reasons, and the reasons provided in the Final Office Action and Answer, we sustain the rejections of claims 1-12 under 35 U.S.C. § 103(a) over Matsukura. Rejection over Kojima Appellants similarly challenge the rejection of claim 1 over Kojima by arguing that the Examiner has not demonstrated how Kojima teaches or suggests the limitation of "the depth where the C-level reaches (Cbulk+Csurface)/2, is higher than 75µm." App. Br. 12. According to Appellants, the Examiner's finding that Kojima teaches that its steel starts with a carbon content of 0.1 to 0.2wt% and undergoes decarburization 13 Appeal2017-006940 Application 13/502,566 annealing where the carbon content at the surface layer contains 0.005wt% or less is an assumption made by the Examiner because Kojima refers to the sheet rather than the surface having a carbon content of 0.005wt% or less. Id. Appellants additionally argue "there is simply not enough information in Kojima to determine that the claimed carbon profile would necessarily flow." Id. at 13. In view of these defects, Appellants contend that the Examiner has not presented a prima facie case of obviousness of claim 1. Id. at 12-13. The Examiner responds that Kojima's alloy would be expected to have the claimed properties because it has a substantially similar composition, is produced using substantially similar methods, undergoes decarburization annealing as in Appellants' steel, and is used for substantially the same process of enameling like Appellants' steel. Ans. 11. The Examiner provides a comparison of Kojima's alloy and production to Appellants' Specification in support. Id. at 11-14. In the Reply Brief, Appellants assert that paragraph 38 of Kojima cited by the Examiner "does not provide any further disclosure of specific decarburization conditions that would inherently disclose the claimed properties." Reply Br. 6. Appellants also assert that even if the midpoint of the profile is at 1.25% or 3.75% of the total thickness of Kojima's steel, it has no relevance to the actual depth at which this midpoint is reached. Id. Regarding the lack of detail to attain the alleged critical depth greater than 75 microns, Appellants reassert that the multiple examples in Table 2 of process conditions illustrate that the midpoint depth depends on specific process conditions not disclosed in the cited prior art. Id. at 6-7. 14 Appeal2017-006940 Application 13/502,566 We are not persuaded by Appellants' arguments for the reasons stated by the Examiner in the Final Office Action and Answer (Final Act. 7-9; Ans. 10-14 ). We provide the following primarily for emphasis. Appellants' arguments are not persuasive because Appellants do not adequately rebut the Examiner's finding (Ans. 11-14) that Kojima's steel is produced using substantially the same process as Appellants' steel, including decarburization annealing. Appellants' do not address the process conditions cited by the Examiner in Kojima's paragraphs 33, 34, and 36 in addition to the description in paragraph 3 8 that describes the process used to produce Kojima's working example 1. The Examiner has provided the record with a preponderance of evidence including commonalities shared by the methods disclosed in Kojima and Appellants' Specification which justifies requiring Appellants to prove that Kojima's product does not necessarily or inherently possess the claimed characteristic of the midpoint C-level occurring at a depth greater than 75µm. See In re Best, 562 F.2d 1252, 1255 (CCPA 1977) ("[T]he PTO can require an applicant to prove that the prior art products do not necessarily or inherently possess the characteristics of his claimed product. ... Whether the rejection is based on 'inherency' under 35 U.S.C. § 102, on 'prima facie obviousness' under 35 U.S.C. § 103,jointly or alternatively, the burden of proof is the same, and its fairness is evidenced by the PTO' s inability to manufacture products or to obtain and compare prior art products." (footnote omitted)). No such proof has been provided by Appellants. Appellants also do not adequately explain why a skilled artisan would understand Kojima's disclosure of 0.005wt% or less to refer to a portion of Kojima's steel sheet other than the surface (App. Br. 12). Appellants do not 15 Appeal2017-006940 Application 13/502,566 dispute that Fick's law of diffusion means that decarburization will necessarily create a carbon gradient through the steel sheet (Reply Br. 4 ). Appellants only dispute the shape of the diffusion curve being the same as the curve exhibited by the claimed steel sheet suitable for enameling to produce the claimed C-level midpoint at a depth greater than 75µm (id.). In each of Appellants' exemplary curves, the surface C-level is the lowest C- level. Therefore, Appellants' assertion that Kojima's C-level after annealing of 0.0005wt% or less does not suggest the lowest C-level portion of the curve, i.e., Csurface, is not credible. In sum, Appellants have not provided enough information to rebut the Examiner's finding that the prior art has a substantially similar composition, is produced using substantially similar methods, undergoes decarburization annealing as in the instant steel, and is used for a substantially similar process of enameling with no fish scaling issues. In the absence of a more detailed explanation, we are not convinced of error on the part of the Examiner in concluding the claimed invention would have been obvious within the meaning of 35 U.S.C. § 103(a). See In re Jung, 637 F.3d at 1365. For the foregoing reasons, and the reasons provided in the Final Office Action and Answer, we sustain the rejections of claims 1-12 under 35 U.S.C. § 103(a) over Kojima. DECISION The Examiner's decision rejecting claims 1-12 under 35 U.S.C. § 103(a) is affirmed. 16 Appeal2017-006940 Application 13/502,566 No time period for taking any subsequent action in connection with this appeal may be extended under 37 C.F.R. § 1.136. ORDER AFFIRMED 17 Copy with citationCopy as parenthetical citation