37 CFR 1.325: Other mistakes not corrected Taken from the Ninth Edition of the MPEP, Revision 08.2017, Last Revised in January 2018 CFR Part Index | Key Word Index Part 1: Rules of Practice in Patent Cases Subpart B - National Processing Provisions Correction Of Errors In Patent Previous: §1.324 | Next: §1.331 1.325 Other mistakes not corrected. Mistakes other than those provided for in §§ 1.322, 1.323, 1.324, and not affording legal grounds for reissue or for reexamination, will not be corrected after the date of the patent. [48 FR 2714, Jan. 20, 1983, effective date Feb. 27, 1983]