US 12,391,689 · Application 17/689,741 · Granted Aug 19, 2025
US 12,391,689
Synthesis of key intermediate of kras g12c inhibitor compound
Estimated expiration
February 1, 2040
13y 125d remaining
Earliest effective filing
Nov 15, 2019
+ 20 years
Nov 15, 2039
PTA +593d
Jun 30, 2041
TD cap (US 11,299,491)
Feb 1, 2040
Final
Feb 1, 2040
This calculation includes patent term adjustment (PTA) under 35 U.S.C. §154(b). Patent term extension (PTE) under 35 U.S.C. §156 (for FDA-regulated products) is not included. Terminal disclaimers can affect PTA (In re Cellect, LLC).
Calculation details
Base term
- Filing date
- March 8, 2022
- Earliest effective filing
- November 15, 2019
- Issue date
- August 19, 2025
- PTA
- +593 days
- Base expiry (before PTA)
- November 15, 2039
November 15, 2019 + 20 years = November 15, 2039 + 593 PTA days = June 30, 2041
- Continuation of application 16/685,841, filed Nov 15, 2019, issued as US 11,299,491
- PRO62/768,802 — Provisional — not used for base term
- PRO62/768,802 — Provisional — not used for base term
Terminal disclaimers
TD caps expiration to February 1, 2040 (earliest expiring referenced patent: US 11,299,491)
US 11,299,491· Application 16/685,841Capping patent
Synthesis of key intermediate of kras g12c inhibitor compound
- Filing date
- Nov 15, 2019
- Earliest effective filing
- Nov 15, 2019
- Issue date
- Apr 12, 2022
- PTA
- +78 days
- Calculated expiration
- Feb 1, 2040
Nov 15, 2019 + 20y + 78d PTA = Feb 1, 2040
US 12,391,689· Application 17/689,741(from application 17/689,741)
Synthesis of key intermediate of kras g12c inhibitor compound
- Filing date
- Mar 8, 2022
- Earliest effective filing
- Nov 15, 2019
- Issue date
- Aug 19, 2025
- PTA
- +593 days
- Calculated expiration
- Jun 30, 2041
Continuation of 16/685,841, filed Nov 15, 2019, issued as US 11,299,491
Nov 15, 2019 + 20y + 593d PTA = Jun 30, 2041
Patent term extension under 35 U.S.C. §156, which can apply to certain drug, biologic, animal drug and medical device patents, is not included in this calculation. How PTE is calculated
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Application 17/689,741 · US 12,391,689
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www.patentreply.ai/tools/patent-expiration/US12391689Data sourced from public USPTO records. This tool provides informational estimates and should not be relied upon as legal advice. Always verify patent expiration dates independently, especially where patent term extension, terminal disclaimers, or unusual continuity issues may apply.