Patent Appeal No. 7901. April 11, 1968. Alvin Guttag, Cushman, Darby Cushman, Washington, D.C., for appellants. Joseph Schimmel, Washington, D.C., (Fred W. Sherling, Washington, D.C., of counsel) for the Commissioner of Patents. Before WORLEY, Chief Judge, and RICH, SMITH, ALMOND and KIRKPATRICK, Judges. Senior District Judge, Eastern District of Pennsylvania, sitting by designation. ALMOND, Judge. This is an appeal from the decision of the Patent Office Board of Appeals affirming the rejection of

(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) (1) Appellant may file a single request for rehearing within two months of the date of the original decision of the Board. No request for rehearing from a decision on rehearing will be permitted, unless the rehearing decision so modified the original decision as to become, in effect, a new decision, and the Board states that a second request for rehearing would be permitted. The request for rehearing must state with particularity the points believed to have been misapprehended or overlooked by