US 12,663,658 · Application 18/478,062 · Granted Jun 23, 2026
US 12,663,658
Partial beam splitter, stack comprising two or more such partial beam splitters and method of manufacturing such a partial beam splitter
Estimated expiration
August 21, 2044
17y 352d remaining
Earliest effective filing
Sep 29, 2023
+ 20 years
Sep 29, 2043
PTA +327d
Aug 21, 2044
No TD
—
Final
Aug 21, 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
- September 29, 2023
- Earliest effective filing
- September 29, 2023
- Issue date
- June 23, 2026
- PTA
- +327 days
- Base expiry (before PTA)
- September 29, 2043
September 29, 2023 + 20 years = September 29, 2043 + 327 PTA days = August 21, 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
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Application 18/478,062 · US 12,663,658
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www.patentreply.ai/tools/patent-expiration/US12663658Data 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.