Expired Canadian patentCanada
Imidazole derivatives and their use as cytokine inhibitors
CA 2127876 C · Owner: Adams, Jerry Leroy · Inventors: Gallagher, Timothy Francis; Lee, John C.; White, John Richard
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 2,4,5-triarylimidazole compounds of formula I and compositions for use in therapy are:, disclosed, Such compounds and compositions are useful in treating cytokine mediated diseases.
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 January 13, 1993 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 13, 1993
GrantedMay 13, 2003
Term endedJanuary 13, 2013
Patent numberCA 2127876 C
Classification (IPC)C07D401/04 +2 more
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.