MPEP 1400 – Correction of Patents

MPEP 1400 deals with fixing mistakes in patents which have already issued.

A lot of these laws originate from 35 U.S.C. § 251.

There are three main mechanisms for correcting issued patents. They are certificates of correction, disclaimers and reissue applications.

Back to: Passing the Patent Bar – On-Line Guide > 5 - Procedures (Est. 4 Hours 30 Minutes)