US 12,485,396 · Application 17/771,100 · Granted Dec 2, 2025
US 12,485,396
Magnetic field particle confinement in rotary tube furnace
Estimated expiration
February 24, 2043
16y 144d remaining
Earliest effective filing
Oct 23, 2020
+ 20 years
Oct 23, 2040
PTA +854d
Feb 24, 2043
No TD
—
Final
Feb 24, 2043
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
- April 22, 2022
- Earliest effective filing
- October 23, 2020
- Issue date
- December 2, 2025
- PTA
- +854 days
- Base expiry (before PTA)
- October 23, 2040
October 23, 2020 + 20 years = October 23, 2040 + 854 PTA days = February 24, 2043
- National stage entry of application PCTUS2020057160, filed Oct 23, 2020
- PRO62/925,298 — Provisional — not used for base term
- PRO62/925,298 — 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 17/771,100 · US 12,485,396
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www.patentreply.ai/tools/patent-expiration/US12485396Data 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.