37 C.F.R. § 2.166 Affidavit of continued use or excusable nonuse combined with renewal application.
Title 37 - Patents, Trademarks, and Copyrights
An affidavit or declaration under section 8 of the Act and a renewal application under section 9 of the Act may be combined into a single document, provided that the document meets the requirements of both sections 8 and 9 of the Act. [64 FR 48925, Sept. 8, 1999]
Title 37: Patents, Trademarks, and Copyrights
PART 2—RULES OF PRACTICE IN TRADEMARK CASES
Cancellation for Failure To File Affidavit or Declaration During Sixth Year
§ 2.166 Affidavit of continued use or excusable nonuse combined with renewal application.

