Polyether compounds
CA 1160972 A · Owner: Hoffmann-La Roche Limited · Inventors: Prosser, Barbara; Liu, Chao-Min; Westley, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polyether compounds viz. antibiotics X-14868A and X-14868B of the general formula, I, wherein R is hydrogen or methyl and pharmaceutically acceptable salts thereof. Moreover two further minor components, viz. antibiotics X-14868C and D (Na salts). These products are prepared by fermentation of novel Nocardia species. The compounds have antimicrobial activity and promote the growth-of ruminant animals.
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 January 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
- 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.