Optically active pyridonecarboxylic acid derivatives
CA 1340801 C · Owner: Daiichi Seiyaku Co. Ltd. · Inventors: Hayakawa, Isao; Kimura, Youichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N1-(1,2-cis-2-halogenocyclopropyl)-substituted pyridonecarboxylic acid derivatives represented by formula (I) and the salts thereof are disclosed. These compounds have patent antibacterial activities against a wide variety of infectious bacteria, and are useful as antibacterial agents by oral or parenteral administration.
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 October 26, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2016.
- 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.