US 12,755,878 · Application 18/489,568 · Granted Oct 6, 2026
US 12,755,878
Anisotropic iron nitride permanent magnets
Estimated expiration
January 3, 2042
15y 92d remaining
Earliest effective filing
Feb 22, 2021
+ 20 years
Feb 22, 2041
PTA +315d
Jan 3, 2042
No TD
—
Final
Jan 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
- October 18, 2023
- Earliest effective filing
- February 22, 2021
- Issue date
- October 6, 2026
- PTA
- +315 days
- Base expiry (before PTA)
- February 22, 2041
February 22, 2021 + 20 years = February 22, 2041 + 315 PTA days = January 3, 2042
- Divisional of application 17/718,517, filed Apr 12, 2022, issued as US 11,830,644
- Continuation of application 17/182,066, filed Feb 22, 2021, issued as US 11,309,107
- Continuation of application 17/182,066, filed Feb 22, 2021, issued as US 11,309,107
- PRO62/979,668 — Provisional — not used for base term
- PRO63/080,144 — Provisional — not used for base term
- PRO62/979,668 — Provisional — not used for base term
- PRO63/080,144 — Provisional — not used for base term
- PRO62/979,668 — Provisional — not used for base term
- PRO63/080,144 — Provisional — not used for base term
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 18/489,568 · US 12,755,878
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www.patentreply.ai/tools/patent-expiration/US12755878Data 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.