US 12670302 — Patent Expiration

METHOD AND APPARATUS FOR OPTIMIZING LITHOGRAPHY QUALITY, ELECTRONIC DEVICE, MEDIUM AND PROGRAM PRODUCT

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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 12670302

Method And Apparatus For Optimizing Lithography Quality, Electronic Device, Medium And Program Product

High Confidence

Application No. 18255045

August 18, 2043

17y 37d remaining

Could not fetch continuity data for application PCTCN2021127864: Resource not found (404)

Earliest effective filing

Nov 1, 2021

+ 20 years

Nov 1, 2041

PTA +655d

Aug 18, 2043

No TD

—

Final

Aug 18, 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 Calculation

Filing Date

May 30, 2023

Earliest Effective Filing

November 1, 2021

Issue Date

June 30, 2026

PTA

+655 days

Base Expiry (before PTA)

November 1, 2041

November 1, 2021 + 20 years = November 1, 2041 + 655 PTA days = August 18, 2043

National Stage Entry of application PCTCN2021127864, filed Nov 1, 2021

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.