The published mark is not subject to opposition, but is subject to petitions to cancel as specified in § 2.111 and to cancellation for failure to file the affidavit or declaration required by section 8 of the Act.
37 C.F.R. §2.156
Part 3 pertaining to both patents and trademarks is placed in the grouping pertaining to patents regulations.
Part 4 is placed in the separate grouping of parts pertaining to patents regulations.
Part 5 is placed in the separate grouping of parts pertaining to patents regulations.