US 8943998 — Patent Expiration

METHOD AND APPARATUS FOR CLADDING AN INTERIOR SURFACE OF A CURVED PIPE

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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 8943998

Method And Apparatus For Cladding An Interior Surface Of A Curved Pipe

High Confidence

Application No. 12946022

December 5, 2033

7y 144d remaining

Earliest effective filing

Nov 15, 2010

+ 20 years

Nov 15, 2030

PTA +1116d

Dec 5, 2033

No TD

—

Final

Dec 5, 2033

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

November 15, 2010

Earliest Effective Filing

November 15, 2010

Issue Date

February 3, 2015

PTA

+1116 days

Base Expiry (before PTA)

November 15, 2030

November 15, 2010 + 20 years = November 15, 2030 + 1116 PTA days = December 5, 2033

No continuity chain — used own filing date.

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.