US 11,397,521 · Application 16/587,131 · Granted Jul 26, 2022
US 11,397,521
Communication system
Estimated expiration
September 30, 2039
13y 3d remaining
Earliest effective filing
Sep 30, 2019
+ 20 years
Sep 30, 2039
PTA +0d
Sep 30, 2039
No TD
—
Final
Sep 30, 2039
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
- September 30, 2019
- Earliest effective filing
- September 30, 2019
- Issue date
- July 26, 2022
- PTA
- 0 days
- Base expiry (before PTA)
- September 30, 2039
September 30, 2019 + 20 years = September 30, 2039
Continuity chain
No continuity chain; the patent’s own filing date was used.
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
The prosecution record for your AI
Application 16/587,131 · US 11,397,521
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www.patentreply.ai/tools/patent-expiration/US11397521Data 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.