37 C.F.R. § 1.958 Petition to revive terminated inter partes reexamination or claims terminated for lack of patent owner response.
Title 37 - Patents, Trademarks, and Copyrights
(a) If a response by the patent owner is not timely filed in the Office, the delay in filing such response may be excused if it is shown to the satisfaction of the Director that the delay was unavoidable. A grantable petition to accept an unavoidably delayed response must be filed in compliance with §1.137(a). (b) Any response by the patent owner not timely filed in the Office may be accepted if the delay was unintentional. A grantable petition to accept an unintentionally delayed response must be filed in compliance with §1.137(b).
Title 37: Patents, Trademarks, and Copyrights
PART 1—RULES OF PRACTICE IN PATENT CASES
Subpart H—
Extensions of Time, Termination of Proceedings, and Petitions To Revive in Inter Partes Reexamination
§ 1.958 Petition to revive terminated
