US 7,497,836 · Application 11/256,016 · Granted Mar 3, 2009
US 7,497,836
Germicidal method for treating or preventing sinusitis
Estimated expiration
August 28, 2025
Expired 412 days ago
Earliest effective filing
Mar 4, 2005
+ 20 years
Mar 4, 2025
PTA +177d
Aug 28, 2025
TD applied
Aug 28, 2025
Final
Aug 28, 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. Terminal disclaimers can affect PTA (In re Cellect, LLC).
Calculation details
Base term
- Filing date
- October 21, 2005
- Earliest effective filing
- March 4, 2005
- Issue date
- March 3, 2009
- PTA
- +177 days
- Base expiry (before PTA)
- March 4, 2025
March 4, 2005 + 20 years = March 4, 2025 + 177 PTA days = August 28, 2025
- Continuation-in-part of application 11/238,551, filed Sep 29, 2005, issued as US 7,497,834
- Continuation-in-part of application 11/122,154, filed May 4, 2005, issued as US 7,470,240
- Continuation-in-part of application 11/071,156, filed Mar 4, 2005
- Continuation-in-part of application 11/071,156, filed Mar 4, 2005
- Continuation-in-part of application 11/122,154, filed May 4, 2005, issued as US 7,470,240
- Continuation-in-part of application 11/071,156, filed Mar 4, 2005
- PRO60/621,028 — Provisional — not used for base term
- PRO60/642,149 — Provisional — not used for base term
- PRO60/621,028 — Provisional — not used for base term
- PRO60/642,149 — Provisional — not used for base term
- PRO60/693,369 — Provisional — not used for base term
- PRO60/693,143 — Provisional — not used for base term
- PRO60/621,028 — Provisional — not used for base term
- PRO60/642,149 — Provisional — not used for base term
- PRO60/693,369 — Provisional — not used for base term
- PRO60/693,143 — Provisional — not used for base term
- PRO60/621,028 — Provisional — not used for base term
- PRO60/642,149 — Provisional — not used for base term
Terminal disclaimers
TD caps expiration to August 28, 2025
US 7,497,836· Application 11/256,016(from application 11/256,016)Capping patent
Germicidal method for treating or preventing sinusitis
- Filing date
- Oct 21, 2005
- Earliest effective filing
- Mar 4, 2005
- Issue date
- Mar 3, 2009
- PTA
- +177 days
- Calculated expiration
- Aug 28, 2025
Continuation-in-part of 11/238,551, filed Sep 29, 2005, issued as US 7,497,834
Continuation-in-part of 11/122,154, filed May 4, 2005, issued as US 7,470,240
Continuation-in-part of 11/071,156, filed Mar 4, 2005
Continuation-in-part of 11/071,156, filed Mar 4, 2005
Continuation-in-part of 11/122,154, filed May 4, 2005, issued as US 7,470,240
Continuation-in-part of 11/071,156, filed Mar 4, 2005
Mar 4, 2005 + 20y + 177d PTA = Aug 28, 2025
US 7,497,835· Application 11/238,730(from application 11/238,730)
Method of treatment for and prevention of periodontal disease
- Filing date
- Sep 29, 2005
- Earliest effective filing
- Mar 4, 2005
- Issue date
- Mar 3, 2009
- PTA
- +514 days
- Calculated expiration
- Jul 31, 2026
Continuation-in-part of 11/122,154, filed May 4, 2005, issued as US 7,470,240
Continuation-in-part of 11/071,156, filed Mar 4, 2005
Continuation-in-part of 11/071,156, filed Mar 4, 2005
Mar 4, 2005 + 20y + 514d PTA = Jul 31, 2026
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 11/256,016 · US 7,497,836
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www.patentreply.ai/tools/patent-expiration/US7497836Data 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.