How are late responses by requesters handled in reexamination proceedings?

Late responses by requesters in reexamination proceedings are not considered and are expunged from the file. According to MPEP 2267:

“Any response subsequent to 2 months from the date of service of the patent owner’s statement will not be considered, and will be expunged.”

This rule is based on 37 CFR 1.535 and 37 CFR 1.540, which govern the timing of requester responses in reexamination proceedings. It’s important for requesters to adhere to these time limits to ensure their responses are considered in the reexamination process.

To learn more:

Topics: MPEP 2200 - Citation Of Prior Art And Ex Parte Reexamination Of Patents, MPEP 2267 - Handling Of Inappropriate Or Untimely Filed Papers, Patent Law, Patent Procedure
Tags: ex parte reexamination, expungement, Late Responses, Requester, Time Limits