US 12,252,463 · Application 17/613,903 · Granted Mar 18, 2025
US 12,252,463
Compositions and methods of making ribitol
Estimated expiration
July 1, 2042
15y 290d remaining
Earliest effective filing
May 27, 2020
+ 20 years
May 27, 2040
PTA +765d
Jul 1, 2042
No TD
—
Final
Jul 1, 2042
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
- November 23, 2021
- Earliest effective filing
- May 27, 2020
- Issue date
- March 18, 2025
- PTA
- +765 days
- Base expiry (before PTA)
- May 27, 2040
May 27, 2020 + 20 years = May 27, 2040 + 765 PTA days = July 1, 2042
- National stage entry of application PCTUS2020034732, filed May 27, 2020
- PRO62/853,316 — Provisional — not used for base term
- PRO62/853,316 — 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 17/613,903 · US 12,252,463
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www.patentreply.ai/tools/patent-expiration/US12252463Data 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.