Imidazole, triazole and tetrazole derivatives
CA 2133076 A1 · Owner: Matassa, Victor Giulio · Inventors: Castro Pineiro, Jose Luis; Matassa, Victor Giulio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A class of substituted imidazole triazole and tetrazole, derivatives are selective agonists of 5-HT1- like receptors and are therefore useful in the treatment of clinical conditions in, particular migraine and associated disorders for which a selective, agonist of these receptors is indicated.
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 March 29, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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.
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.