What is the time limit for requesting a Certificate of Correction for a patent?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. There is no specific time limit for requesting a Certificate of Correction for a patent. As long as the patent is still in force, you can request a correction. However, it’s generally advisable to request corrections as soon as possible after discovering an error to ensure the accuracy of the patent record. The MPEP 1481 does not specify a time limit, but states: “A patentee may request a certificate of correction of a patent by submitting Form PTO/SB/44 (for utility patents) or Form PTO/SB/43 (for design patents).” While there’s no time limit, it’s important to remember that the longer you wait, the more likely it is that third parties may have relied on the uncorrected patent information, which could potentially complicate matters in some cases. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Patentee Can Request Certificate of Correction MPEP 1481 Permitted Requirements for Certificate of Correction of Applicant’s Mistake MPEP 1481 Required Criteria for Certificate of Correction Under 35 U.S.C. 255 MPEP 1481 Certificate of Correction Mistakes Must Be Minor MPEP 1481 Required Correction for Clerical Mistakes Allowed MPEP 1481 Required Correction for Applicant’s Mistake MPEP 1481 Mistakes Correctable via Reissue Application MPEP 1481 Permitted Failure to Present Claim Is Not Correctable by Certificate of Correction MPEP 1481 Motion Required for PTAB Interference Requests MPEP 1481 Required District Courts Can Correct Patent Errors Not Subject to Certificate of Correction MPEP 1481 Other Related FAQs 5 FAQs Collapse What happens if a new inventor is identified in a CPA without filing a proper request? Can an inventor&#8217;s oath or declaration be corrected or w...