US 8,894,706 · Application 12/415,742 · Granted Nov 25, 2014
US 8,894,706
Non-prolate bi-sign aspheric intraocular lens
Estimated expiration
October 22, 2030
4y 15d remaining
Earliest effective filing
Mar 31, 2009
+ 20 years
Mar 31, 2029
PTA +570d
Oct 22, 2030
No TD
—
Final
Oct 22, 2030
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
- March 31, 2009
- Earliest effective filing
- March 31, 2009
- Issue date
- November 25, 2014
- PTA
- +570 days
- Base expiry (before PTA)
- March 31, 2029
March 31, 2009 + 20 years = March 31, 2029 + 570 PTA days = October 22, 2030
- PRO61/159,369 — 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
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Application 12/415,742 · US 8,894,706
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www.patentreply.ai/tools/patent-expiration/US8894706Data 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.