37 CFR §41.100
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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.