Cephalosporins and a process for their preparation
CA 1208206 A · Owner: Bayer Aktiengesellschaft · Inventors: Boberg, Michael; Metzger, Karl G.; Kinast, Gunther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention makes available cephalosporins of the general formula I. (I), In the general formula I R1 denotes C1-C6 alkyl, and R2 and R3, are identical or different and denote H C1-C4-alkyl, chlorine, bromine, carbamoyl or N-C1-C4-alkylcarbamoyl. The compounds according to the invention are particularly active against bacteria and bacteria-like microorganisms. They are therefore particularly suitable, in human medicine and veterinary medicine for the prophylaxis and chemotherapy of local and systemic infections caused by these pathogens.
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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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- 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.