US 7,829,228 · Application 11/466,813 · Granted Nov 9, 2010
US 7,829,228
Control strategy to prevent humidity cycling in a fuel cell
Estimated expiration
—
- Maintenance fee lapse detected.
- Patent may have expired due to maintenance fees: Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Earliest effective filing
Aug 24, 2006
+ 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
- Filing date
- August 24, 2006
- Earliest effective filing
- August 24, 2006
- Issue date
- November 9, 2010
- PTA
- 0 days
- Base expiry (before PTA)
- —
August 24, 2006 + 20 years = —
Patent term extension under 35 U.S.C. §156, which can apply to certain drug, biologic, animal drug and medical device patents, is not included in this calculation. How PTE is calculated
The prosecution record for your AI
Application 11/466,813 · US 7,829,228
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www.patentreply.ai/tools/patent-expiration/US7829228Data 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.