(a)Who may appeal and how to file an appeal. An appeal is taken to the Board by filing a notice of appeal. (1) Every applicant, any of whose claims has been twice rejected, may appeal from the decision of the examiner to the Board by filing a notice of appeal accompanied by the fee set forth in § 41.20(b)(1) within the time period provided under § 1.134 of this title for reply. (2) Every owner of a patent under ex parte reexamination filed under § 1.510 of this title before November 29, 1999, any