US 12431268 — Patent Expiration

R-T-B PERMANENT MAGNET MATERIAL AND PREPARATION METHOD THEREFOR AND USE THEREOF

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Important: This calculator does not include patent term extension under 35 U.S.C. § 156, which may apply to certain drug, biologic, animal drug, and medical device patents.

Learn more about PTE and patent expiration

US 12431268

R-t-b Permanent Magnet Material And Preparation Method Therefor And Use Thereof

High Confidence

Application No. 17637522

March 2, 2042

15y 245d remaining

Could not fetch continuity data for application PCTCN2020100590: Resource not found (404)

Earliest effective filing

Jul 7, 2020

+ 20 years

Jul 7, 2040

PTA +603d

Mar 2, 2042

No TD

—

Final

Mar 2, 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 Calculation

Filing Date

February 23, 2022

Earliest Effective Filing

July 7, 2020

Issue Date

September 30, 2025

PTA

+603 days

Base Expiry (before PTA)

July 7, 2040

July 7, 2020 + 20 years = July 7, 2040 + 603 PTA days = March 2, 2042

National Stage Entry of application PCTCN2020100590, filed Jul 7, 2020

Terminal Disclaimer Analysis

No TD

0 approved, 0 filed

Data 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.