Cephalosporin analogues and processes for the preparation thereof
CA 1110624 A · Owner: Fujisawa Pharmaceutical Co. Ltd. · Inventors: Aratani, Matsuhiko; Takeno, Hidekazu; Hemmi, Keiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New cephalosporin analogues and pharmaceutically acceptable salts thereof having antimicrobial activities and useful in the therapeutic treatment of infectious diseases in human beings and animals; the new cephalosporin analogues and pharmaceutically acceptable salts are highly active against a number of pathogenic microorganisms; the analogues have the formula:-, where R1a, R2 and Y can be selected from various substituents.
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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 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
- 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
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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.