(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) Appellant(s) may once, within time limits for filing set forth in § 41.66 , file a brief and serve the brief on all other parties to the proceeding in accordance with § 1.903 of this title. (2) The brief must be signed by the appellant, or the appellant's duly authorized attorney or agent and must be accompanied by the requisite fee set forth in § 41.20(b)(2) . (b) An appellant's appeal shall stand dismissed upon failure of that appellant to file an appellant's brief, accompanied by the requisite
(a) (1) Respondent(s) in an appeal may once, within the time limit for filing set forth in § 41.66 , file a respondent brief and serve the brief on all parties in accordance with § 1.903 of this title. (2) The brief must be signed by the party, or the party's duly authorized attorney or agent, and must be accompanied by the requisite fee set forth in § 41.20(b)(2) . (3) The respondent brief shall be limited to issues raised in the appellant brief to which the respondent brief is directed. (4) A requester's
(a) Within one month of the examiner's answer, any appellant may once file a rebuttal brief. (b) (1) The rebuttal brief of the owner may be directed to the examiner's answer and/or any respondent brief. (2) The rebuttal brief of the owner shall not include any new or non-admitted amendment, or an affidavit or other evidence. See § 1.116 of this title for amendments, affidavits or other evidence filed after final action but before or on the same date of filing an appeal and § 41.63 for amendments