37 C.F.R. § 41.100 Definitions.
Title 37 - Patents, Trademarks, and Copyrights
In addition to the definitions in §41.2, the following definitions apply to proceedings under this subpart: Business day means a day other than a Saturday, Sunday, or Federal holiday within the District of Columbia. Involved means the Board has declared the patent application, patent, or claim so described to be a subject of the contested case.
Title 37: Patents, Trademarks, and Copyrights
PART 41—PRACTICE BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES
Subpart D—Contested Cases
§ 41.100 Definitions.

