Substituted quinazolin-4-ylamine analogues
CA 2473796 A1 · Owner: Blum, Charles A. · Inventors: Yoon, Taeyoung; Blum, Charles A.; Brielmann, Harry L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates generally to substituted quinazolin-4-ylamine analogues that are modulators of capsaicin receptors and to the use of such compounds , for treating conditions related to capsaicin receptor activation. The invention further relates to the use such compounds as probes for the detection and localization of capsaicin receptors.
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 17, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2025.
- 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.