US 12,488,918 · Application 17/785,044 · Granted Dec 2, 2025
US 12,488,918
Neodymium-iron-boron magnet material, raw material composition preparation method, and application
Estimated expiration
July 1, 2042
15y 270d remaining
- Could not fetch continuity data for application PCTCN2021077178: Resource not found (404)
Earliest effective filing
Feb 22, 2021
+ 20 years
Feb 22, 2041
PTA +494d
Jul 1, 2042
No TD
—
Final
Jul 1, 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
- June 13, 2022
- Earliest effective filing
- February 22, 2021
- Issue date
- December 2, 2025
- PTA
- +494 days
- Base expiry (before PTA)
- February 22, 2041
February 22, 2021 + 20 years = February 22, 2041 + 494 PTA days = July 1, 2042
- National stage entry of application PCTCN2021077178, filed Feb 22, 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 17/785,044 · US 12,488,918
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www.patentreply.ai/tools/patent-expiration/US12488918Data 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.