US 12,728,430 · Application 18/340,429 · Granted Sep 8, 2026
US 12,728,430
Linear evaporation source
Estimated expiration
October 4, 2044
18y 30d remaining
Earliest effective filing
Jun 23, 2023
+ 20 years
Jun 23, 2043
PTA +469d
Oct 4, 2044
No TD
—
Final
Oct 4, 2044
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
- June 23, 2023
- Earliest effective filing
- June 23, 2023
- Issue date
- September 8, 2026
- PTA
- +469 days
- Base expiry (before PTA)
- June 23, 2043
June 23, 2023 + 20 years = June 23, 2043 + 469 PTA days = October 4, 2044
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 18/340,429 · US 12,728,430
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www.patentreply.ai/tools/patent-expiration/US12728430Data 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.