What are the requirements for filing a broadening reissue application?

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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. Filing a broadening reissue application has specific requirements: Time Limit: It must be filed within two years from the grant of the original patent. Oath/Declaration: A reissue oath or declaration is required, stating that the applicant believes the original patent to be wholly or partly inoperative or invalid. Reason: The broadening must be due to the patentee claiming less than they had a right to claim in the original patent. As stated in MPEP 1401 : “A broadened reissue application must be applied for within two years of the grant of the original patent.” It’s crucial to meet this deadline and provide a proper oath or declaration explaining the need for broadening. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Reissue Patent for Inoperative or Invalid Claims MPEP 1401 Required Reissue Patent Must Enlarge Claims Within Two Years MPEP 1401 Required No New Matter in Reissue Application MPEP 1401 Required Reissue Patent for Inoperative Error MPEP 1401 Required No New Matter in Reissue Application MPEP 1401 Required Reissue Claims Must Not Enlarge Original Patent Scope MPEP 1401 Reissue Application by Assignee Without Scope Enlargement MPEP 1401 Required Patent Reissue Criteria Without Deceptive Intent MPEP 1401 No Extension of Claim Scope After Two Years MPEP 1401 Claims Broadening Not Allowed After Two Years MPEP 1401 Required Other Related FAQs 5 FAQs Collapse What are reissue applications according to MPEP 201.01? How can I request a corrected patent with a perfected foreign priority claim? How can I correct the priority claim in a patent after it has been issued? Can I add a priority claim to a patent after it has been issued? What is a reissue applicat...