US 6402949 — Patent Expiration

PORTABLE WATER FILTRATION SYSTEM

Shareable link — bookmark or send to anyone

www.patentreply.ai/tools/patent-expiration/US6402949

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 6402949

Portable Water Filtration System

High Confidence

Application No. 09883061

—

Patent may have expired due to maintenance fees: Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362

Maintenance fee lapse detected

Earliest effective filing

Jun 15, 2001

+ 20 years

—

PTA +0d

—

No TD

—

Final

—

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

June 15, 2001

Earliest Effective Filing

June 15, 2001

Issue Date

June 11, 2002

PTA

0 days

Base Expiry (before PTA)

—

June 15, 2001 + 20 years = —

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.