Acidic polycyclic ether antibiotic
CA 2010768 C · Owner: Kostek, Gloria Jean · Inventors: Tone, Junsuke; Kostek, Gloria Jean; Hauske, James Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography is, formed by fermentation of a novel microorganism Streptomyces sp. ATCC 53862. This novel antibiotic is useful as an anticoccidial in chickens in the, prevention or treatment of swine dysentery and as a, growth promotant in cattle and swine.
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
- Filed February 23, 1990 and granted October 8, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2012.
- 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.