Quinolonecarboxylic acid derivative, preparation thereof and pharmaceutical composition containing the derivative
CA 2005015 A1 · Owner: Dainippon Pharmaceutical Co. Ltd. · Inventors: Nakamura, Shinichi; Matsumoto, Jun-Ichi; Minamida, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-Cyclopropyl-6-fluoro-8-methoxy-5-methyl-7-(3,5dimethyl-1-piperazinyl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid and salts thereof, processes for preparing them and a, pharmaceutical composition containing them. The compound of this invention and salts thereof have very good properties as a quinolone antibacterial agent and therefore are useful for prophylaxis and treatment of bacterial infections in warm-blooded animals as an antibacterial agent.
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 8, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2011.
- 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.