[Code of Federal Regulations] [Title 37, Volume 1] [Revised as of July 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 37CFR41.43] [Page 395-396] TITLE 37--PATENTS, TRADEMARKS, AND COPYRIGHTS CHAPTER I--UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE PART 41_PRACTICE BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES--Table of Contents Subpart B_Ex Parte Appeals Sec. 41.43 Examiner's response to reply brief. (a)(1) After receipt of a reply brief in compliance with Sec. 41.41, the primary examiner must acknowledge receipt and entry of the reply brief. In addition, the primary examiner may withdraw the final rejection and reopen prosecution or may furnish a supplemental examiner's answer responding to any new issue raised in the reply brief. (2) A supplemental examiner's answer responding to a reply brief may not include a new ground of rejection. (b) If a supplemental examiner's answer is furnished by the examiner, appellant may file another reply brief under Sec. 41.41 to any supplemental examiner's answer within two months from [[Page 396]] the date of the supplemental examiner's answer. (c) Extensions of time under Sec. 1.136(a) of this title for patent applications are not applicable to the time period set forth in this section. See Sec. 1.136(b) of this title for extensions of time to reply for patent applications and Sec. 1.550(c) of this title for extensions of time to reply for ex parte reexamination proceedings. Effective Date Note: At 73 FR 32976, June 10, 2008, Sec. 41.43 was removed, effective December 10, 2008.