www.patentreply.ai/tools/patent-expiration/US7660297Important: 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 expirationVoice Over Ip Forwarding
Application No. 11503117
June 21, 2027
352 days remainingEarliest effective filing
Aug 14, 2006
+ 20 years
Aug 14, 2026
PTA +311d
Jun 21, 2027
No TD
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Final
Jun 21, 2027
Filing Date
August 14, 2006
Earliest Effective Filing
August 14, 2006
Issue Date
February 9, 2010
PTA
+311 days
Base Expiry (before PTA)
August 14, 2026
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.