3-(pyrrol-2-ylmethylidene)-2-indolinone derivatives and their use as protein kinase modulators
CA 2409430 A1 · Owner: Gao, Ping · Inventors: Gao, Ping; Koenig, Marcel; Morozowich, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to prodrugs of certain 3-(pyrrol-2-ylmethylidene)-2-indolinone derivatives that modulate the activity of protein kinases ("PKs"). Pharmaceutical compositions comprising these compounds methods of treating diseases related to abnormal PK activity utilizing pharmaceutical compositions comprising these compounds and methods of preparing them are also disclosed.
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 May 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2023.
- 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.