Substituted dihydroquinolone carboxylic acids and anti-bacterial compositions containing them
CA 1262249 C · Owner: Gilligan, Paul J. · Inventors: Mcguirk, Paul R.; Gilligan, Paul J.; Witty, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
SUBSTITUTED DIHYDROQUINOLONE CARBOXYLIC ACIDS AND ANTI-BACTERIAL COMPOSITIONS CONTAINING T~EM Abstract, 1-Substituted-6-fluoxo-7-aryl-(8-fluoro)-1,4dihydroquinol-4-one 3-carboxylic acids having antibacterial activity. They may be prepared by reacting the corresponding alkyl 1-substituted-6-fluoro-7bromo-(8-fluoro)-1,4-dihydroquinol-4-one-3-carboxylate with an arylmetallic compound and hydrolyzing the ester formed.
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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 October 10, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 10, 2006.
- 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.