Pyrazolo-quinazoline derivatives, process for their preparation and their use as kinase inhibitors
CA 2526578 C · Owner: Fancelli, Daniele · Inventors: Traquandi, Gabriella; Quartieri, Francesca; Panzeri, Achille
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pyrazolo-quinazoline derivatives of formula (Ia) or (Ib) as defined in the specification, and pharmaceutically acceptable salts thereof process for , their preparation and pharmaceutical compositions comprising them are disclosed; the compounds of the invention may be useful in therapy, in the , treatment of diseases associated with a disregulated protein kinase activity like cancer.
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 27, 2004 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 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.