9-dihydroniddamycin a compounds and related 3-(0)-esters and the process for their preparation
CA 1048018 A · Owner: Abbott Laboratories · Inventors: Freiberg, Leslie A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Covers 9-dihydroniddamycin A compounds and related 3-(O)-esters, which are active antimicrobial agents and, the process for their preparation. These compounds are represented by the general formula:, wherein R1 is hydrogen HCO (formyl), CH3CO (acetyl), C2H5CO, (propionyl) or C3H7CO (butyryl); R2 is hydrogen or equal to R1 and R3 is CHO or CH(OCH3)2. -1-
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 February 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 1996.
- 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.