US 12,727,598 · Application 17/273,211 · Granted Sep 8, 2026
US 12,727,598
Surfactant composition and use thereof
Estimated expiration
May 8, 2041
14y 245d remaining
- Could not fetch continuity data for application PCTCN2018104524: Resource not found (404)
- Application 17273204 has not been granted a patent number
Earliest effective filing
Sep 7, 2018
+ 20 years
Sep 7, 2038
PTA +974d
May 8, 2041
TD applied
May 8, 2041
Final
May 8, 2041
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
- March 3, 2021
- Earliest effective filing
- September 7, 2018
- Issue date
- September 8, 2026
- PTA
- +974 days
- Base expiry (before PTA)
- September 7, 2038
September 7, 2018 + 20 years = September 7, 2038 + 974 PTA days = May 8, 2041
- National stage entry of application PCTCN2018104524, filed Sep 7, 2018
Terminal disclaimers
TD caps expiration to May 8, 2041
US 12,727,598· Application 17/273,211(from application 17/273,211)Capping patent
Surfactant composition and use thereof
- Filing date
- Mar 3, 2021
- Earliest effective filing
- Sep 7, 2018
- Issue date
- Sep 8, 2026
- PTA
- +974 days
- Calculated expiration
- May 8, 2041
National stage entry of PCTCN2018104524, filed Sep 7, 2018
Sep 7, 2018 + 20y + 974d PTA = May 8, 2041
US APP:17273204(from application 17/273,204)
Could not resolve calculation details
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 17/273,211 · US 12,727,598
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www.patentreply.ai/tools/patent-expiration/US12727598Data 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.