(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)Beginning of jurisdiction. Jurisdiction over the proceeding passes to the Board upon the filing of a reply brief under § 41.41 or the expiration of the time in which to file such a reply brief, whichever is earlier. (b)End of jurisdiction. The jurisdiction of the Board ends when: (1) The Director or the Board enters a remand order (see§§ 41.35(c) , 41.35(e) , and 41.50(a)(1) ), (2) The Board enters a final decision (see§ 41.2 ) and judicial review is sought or the time for seeking judicial review