Aglycone and pseudo-aglycones of the aad 216 antibiotics
CA 1238316 A · Owner: Smith Kline & French Canada Ltd. · Inventors: Chan, George W.; Sitrin, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel aglycone and pseudo-aglycones of the AAD 216 antibiotics are prepared by partial acid hydrolysis of the AAD 216 antibiotic complex or its individual factor antibiotics. AAD 216 aglycone, AAD 216 pseudo-aglycone and AAD 216A pseudo-aglycone, AAD 216B pseudo-aglycone and AAD 216C pseudo-aglycone exhibit antibacterial activity and are useful in animal health applications.
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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 21, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 2005.
- 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.