US 12,686,094 · Application 18/463,840 · Granted Jul 21, 2026
US 12,686,094
Method for manufacturing a glass wafer of high quality, glass wafer, glass part element, stack, augmented reality device and use
Estimated expiration
February 3, 2042
15y 147d remaining
- Could not fetch continuity data for application PCTCN2021079914: Resource not found (404)
Earliest effective filing
Mar 10, 2021
+ 20 years
Mar 10, 2041
PTA +330d
Feb 3, 2042
No TD
—
Final
Feb 3, 2042
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 8, 2023
- Earliest effective filing
- March 10, 2021
- Issue date
- July 21, 2026
- PTA
- +330 days
- Base expiry (before PTA)
- March 10, 2041
March 10, 2021 + 20 years = March 10, 2041 + 330 PTA days = February 3, 2042
- Continuation of application PCTCN2021079914, filed Mar 10, 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 18/463,840 · US 12,686,094
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www.patentreply.ai/tools/patent-expiration/US12686094Data 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.