Anti-platelet aggregating agent
CA 2063773 A1 · Owner: Nisshin Flour Milling Co. Ltd. · Inventors: Komatsu, Hirohiko; Sakurai, Einosuke; Nagasaka, Tatsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of 1-phenoxycarbonyl-2-pyrrolidinone derivatives as an anti-platelet aggregating agent. The derivatives are of the formula, wherein R is a C1-C6 alkyl group a C1-C6 alkoxy group, a, nitro group or a halogen atom and n is 0 1 or 2.
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 23, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2014.
- 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.