US 6,978,803 · Application 10/856,577 · Granted Dec 27, 2005
US 6,978,803
Flue cap
Estimated expiration
May 28, 2024
Expired 879 days ago
Earliest effective filing
May 28, 2004
+ 20 years
May 28, 2024
PTA +0d
May 28, 2024
No TD
—
Final
May 28, 2024
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
- May 28, 2004
- Earliest effective filing
- May 28, 2004
- Issue date
- December 27, 2005
- PTA
- 0 days
- Base expiry (before PTA)
- May 28, 2024
May 28, 2004 + 20 years = May 28, 2024
- PRO60/541,551 — Provisional — not used for base term
Terminal disclaimers
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 10/856,577 · US 6,978,803
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www.patentreply.ai/tools/patent-expiration/US6978803Data 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.