www.patentreply.ai/tools/patent-expiration/US8173566Important: 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 expirationProcess For Regenerating A Spent Sorbent
Application No. 10554018
October 26, 2026
108 days remainingEarliest effective filing
Apr 23, 2004
+ 20 years
Apr 23, 2024
PTA +916d
Oct 26, 2026
No TD
—
Final
Oct 26, 2026
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
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.