Cannabinoid receptor modulator
CA 2531020 C · Owner: Kiyota, Yoshihiro · Inventors: Goto, Mika; Yamamoto, Shouzou; Ohkawa, Shigenori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cannabinoid receptor modulator containing a compound represented by Formula (I0), (see formula I0) wherein, X is an oxygen atom, etc. R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0 and , ring B is an optionally substituted 5-membered heterocycle or a salt thereof or a prodrug thereof.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 25, 2004 and granted March 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.