USPTO Terminal Disclaimer Generator
Generate legally compliant terminal disclaimers to overcome double patenting rejections with precision and proper USPTO formatting.
Created by PromptLib Team
February 12, 2026
Best Use Cases
Responding to an obviousness-type double patenting rejection in a continuation or divisional application
Proactively filing a terminal disclaimer to overcome statutory double patenting before final rejection
Aligning patent terms between parent and child applications where the child claims obvious variants of the parent's invention
Filing terminal disclaimers for patent families with overlapping claim scope to ensure enforceability
Correcting terminal disclaimer defects identified in an Ex Parte Quayle action or other USPTO notice
Frequently Asked Questions
What is the difference between a terminal disclaimer and a statutory disclaimer?
A terminal disclaimer (37 CFR 1.321) disclaims the terminal portion of a patent term to overcome double patenting, while a statutory disclaimer (37 CFR 1.323) is used to disclaim specific claims or portions of a patent term for other reasons. Terminal disclaimers require common ownership statements and affect patent term adjustment calculations.
Does filing a terminal disclaimer affect Patent Term Adjustment (PTA)?
Yes. Under 35 U.S.C. 154(b)(2)(B), any term extended by PTA cannot extend beyond the date specified in the terminal disclaimer. The PTA is effectively limited by the terminal disclaimer date, meaning you lose PTA for the disclaimed period.
Can I file a terminal disclaimer after the patent has already issued?
Terminal disclaimers are typically filed during prosecution, but they can be filed post-issuance to overcome double patenting challenges during reissue proceedings or to ensure enforceability. However, post-issuance filing may have different procedural requirements and should be accompanied by a reissue application if claim corrections are needed.
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