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

subpart c - APPEALS

41.81 - Action following decision.

The parties to an appeal to the Board may not appeal to the U.S. Court of Appeals for the Federal Circuit under 1.983 of this title until all parties' rights to request rehearing have been exhausted, at which time the decision of the Board is final and appealable by any party to the appeal to the Board.