37 CFR 1.535 : Patents, Trademarks, And Copyrights (§ 1.1 To Chapter V) — (§ 1.1 To Chapter V) — United States Patent And Trademark Office, Department Of Commerce (§ 1.1 To Parts 151-199) — General (§ 1.1 To §§ 5.31-5.33) — Rules Of Practice In Patent Cases (§ 1.1 To § 1.1071) — Ex Parte Reexamination Of Patents (§ 1.501 To § 1.570) — Ex Parte Reexamination (§ 1.525 To § 1.565) — Reply by third party requester in ex parte reexamination.

4 Aug 2016

A reply to the patent owner's statement under § 1.530 may be filed by the ex parte reexamination requester within two months from the date of service of the patent owner's statement. Any reply by the ex parte requester must be served upon the patent owner in accordance with § 1.248. If the patent owner does not file a statement under § 1.530, no reply or other submission from the ex parte reexamination requester will be considered.

37 CFR 1.535
[65 FR 76776, Dec. 7, 2000]