Venous extensibility improving and cardiac hypertrophy suppressant agent containing a dihydropyridine compound
CA 1318596 C · Owner: Ono, Takaharu · Inventors: Otsuka, Minoru; Ono, Takaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The venous extensibility improving or cardiac hypertrophy suppressant agent is a dihydropyridine compound of the general formula: wherein R1 is a nitrophenyl group and R2 R3 and, R4 are each same or different lower alkyl group or a pharmaceutically acceptable salt thereof.
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
- Granted June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 2010.
- 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.