Glucinamid derivatives, their preparation and drugs containing them
CA 2074357 A1 · Owner: Cotrel, Claude · Inventors: Guyon, Claude; Bourzat, Jean-Dominique; Capet, Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I) in which R1 is an optionally substituted phenyl radical or a -CH(R4)-CO-R5 chain R2 is a pyridyl, isoquinolyl, quinolyl quinoxalinyl, alkyl, phenylalkyl, naphthyl tetrahydro-5,6,7,8 naphthyl, tetrahydro-1,2,3,4 naphthyl alkoxycarbonylalkyl or cycloalkylradical R3 is an optionally substituted phenyl naphthyl, indolyl, quinolyl or optionally substituted phenylamino radical processes for their preparation and medicaments containing them.
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 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2013.
- 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.