US 8,173,566 · Application 10/554,018 · Granted May 8, 2012
US 8,173,566
Process for regenerating a spent sorbent
Estimated expiration
October 26, 2026
17 days remaining
Earliest effective filing
Apr 23, 2004
+ 20 years
Apr 23, 2024
PTA +916d
Oct 26, 2026
No TD
—
Final
Oct 26, 2026
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
- January 23, 2007
- Earliest effective filing
- April 23, 2004
- Issue date
- May 8, 2012
- PTA
- +916 days
- Base expiry (before PTA)
- April 23, 2024
April 23, 2004 + 20 years = April 23, 2024 + 916 PTA days = October 26, 2026
- National stage entry of application PCTUS2004012828, filed Apr 23, 2004
- PRO60/464,868 — Provisional — not used for base term
- PRO60/464,868 — 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 10/554,018 · US 8,173,566
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www.patentreply.ai/tools/patent-expiration/US8173566Data 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.