US 12,638,827 · Application 18/297,107 · Granted May 26, 2026
US 12,638,827
Visual interlock specification for industrial automation
Estimated expiration
February 16, 2043
16y 135d remaining
- Could not fetch continuity data for application PCTEP2021073654: Resource not found (404)
Earliest effective filing
Aug 26, 2021
+ 20 years
Aug 26, 2041
PTA +539d
Feb 16, 2043
No TD
—
Final
Feb 16, 2043
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.
Calculation details
Base term
- Filing date
- April 7, 2023
- Earliest effective filing
- August 26, 2021
- Issue date
- May 26, 2026
- PTA
- +539 days
- Base expiry (before PTA)
- August 26, 2041
August 26, 2021 + 20 years = August 26, 2041 + 539 PTA days = February 16, 2043
- Continuation of application PCTEP2021073654, filed Aug 26, 2021
Terminal disclaimers
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 18/297,107 · US 12,638,827
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www.patentreply.ai/tools/patent-expiration/US12638827Data 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.