(a) PATENT APPLICANT.-An applicant for a patent, any of whose claims has been twice rejected, may appeal from the decision of the primary examiner to the Patent Trial and Appeal Board, having once paid the fee for such appeal. (b) PATENT OWNER.-A patent owner in a reexamination may appeal from the final rejection of any claim by the primary examiner to the Patent Trial and Appeal Board, having once paid the fee for such appeal. 35 U.S.C. § 134 July 19, 1952, ch. 950, 66 Stat. 801; Pub. L. 98-622
(a) (1) If an applicant is required to reply within a nonstatutory or shortened statutory time period, applicant may extend the time period for reply up to the earlier of the expiration of any maximum period set by statute or five months after the time period set for reply, if a petition for an extension of time and the fee set in § 1.17(a) are filed, unless: (i) Applicant is notified otherwise in an Office action; (ii) The reply is a reply brief submitted pursuant to § 41.41 of this title; (iii)
(a)Timing. Appellant may file only a single reply brief to an examiner's answer within the later of two months from the date of either the examiner's answer, or a decision refusing to grant a petition under § 1.181 of this title to designate a new ground of rejection in an examiner's answer. (b)Content. (1) A reply brief shall not include any new or non-admitted amendment, or any new or non-admitted affidavit or other Evidence. See § 1.116 of this title for amendments, affidavits or other evidence