37 C.F.R. § 2.107 Amendment of pleadings in an opposition proceeding.
Title 37 - Patents, Trademarks, and Copyrights
(a) Pleadings in an opposition proceeding against an application filed under section 1 or 44 of the Act may be amended in the same manner and to the same extent as in a civil action in a United States district court, except that, after the close of the time period for filing an opposition including any extension of time for filing an opposition, an opposition may not be amended to add to the goods or services opposed. (b) Pleadings in an opposition proceeding against an application filed under section 66(a) of the Act may be amended in the same manner and to the same extent as in a civil action in a United States district court, except that, once filed, the opposition may not be amended to add to the grounds for opposition or to add to the goods or services subject to opposition. [68 FR 55766, Sept. 26, 2003]
Title 37: Patents, Trademarks, and Copyrights
PART 2—RULES OF PRACTICE IN TRADEMARK CASES
Opposition
§ 2.107 Amendment of pleadings in an opposition proceeding.
