A-40104 antibiotics and process for production thereof
CA 1135641 A · Owner: Eli Lilly And Company · Inventors: Michel, Karl H.; Higgens, Calvin E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The novel A-40104 antibiotic complex comprising active factors A, B, C, and D is, produced by the novel submerged aerobic fermentation of the new strain of Clitopilus pseudo-pinsitus NRRL 11179. Individual factors A, B, and C have been isolated. A-40104 factor C is the known antibiotic pleuromutilin. A-40104 factors A and B are novel antibiotics related to pleuromutilin. A-40104 factor A, the major new factor, is the D-xylose acetal derivative of pleuromutilin. A-40104 factors A and B, their 19,20-dihydro derivatives and the per(C2-C6)alkanoyl derivatives of factors A and B and of their 19,20-dihydro derivatives are active against grampositive and gram-negative bacteria, anaerobic bacteria, …
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 November 16, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 1999.
- 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.