Imidazopyridine derivatives
CA 2407573 C · Owner: Kawaguchi, Ken-Ichi · Inventors: Kawaguchi, Ken-Ichi; Matsuda, Koyo; Koizumi, Tomonobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel compounds having a phosphatidylinositol 3 , kinase (P13K) inhibiting activity which are useful as medicaments more , particularly as , antitumor agent. Novel 3-(imidazo1,2-apyridin-3-yl) derivatives or salts thereof exhibit an excellent , PI3K inhibiting activity and cancer cell growth inhibiting activity and are , thus useful as , medicaments especially as PI3K inhibitors and antitumor agents.
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 April 26, 2001 and granted September 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 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.