Benzodiazepine analogs
CA 2056809 A1 · Owner: Bock, Mark G. · Inventors: Evans, Ben E.; Bock, Mark G.; Freidinger, Roger M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Benzodiazepine analogs of the formula: I, are disclosed which are antagonists of gastrin and cholecystokinin (CCK) with enhanced aqueous solubility and have properties useful in the treatment of panic disorder, anxiety disorder oncologic disorders, treating pain or inducing analgesia, or treating a withdrawal response produced by treatment or abuse of drugs or alcohol.
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 December 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 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.