Acellular synthesis of cephalosporins
CA 1102264 A · Owner: Massachusetts Institute Of Technology · Inventors: Kohsaka, Masanobu; Demain, Arnold L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cephalosporin antibiotic is produced from a precursor comprising the five membered thiazolidine ring and the .beta. lactam moiety characteristic of penicillins by contacting the precursor with a cell-free extract of Cephalosporium acremonium in the presence of ATP under conditions favouring high oxygen transfer. Preferably an ATP regeneration system comprising a phosphate donor and a phosphotransferase enzyme is included in the reaction.
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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 June 2, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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
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.