US 8168147 — Patent Expiration

SORBENTS FOR THE OXIDATION AND REMOVAL OF MERCURY

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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 8168147

Sorbents For The Oxidation And Removal Of Mercury

High Confidence

Application No. 12419219

August 22, 2025

Expired 322 days ago

Earliest effective filing

Aug 22, 2005

+ 20 years

Aug 22, 2025

PTA +0d

Aug 22, 2025

No TD

—

Final

Aug 22, 2025

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

April 6, 2009

Earliest Effective Filing

August 22, 2005

Issue Date

May 1, 2012

PTA

0 days

Base Expiry (before PTA)

August 22, 2025

August 22, 2005 + 20 years = August 22, 2025

Continuation of application 12201595, filed Aug 29, 2008

Divisional of application 11209163, filed Aug 22, 2005, issued as US 7435286

PRO

60605640 — Provisional — not used for base term

PRO

60605640 — Provisional — not used for base term

PRO

60605640 — Provisional — not used for base term

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.