Expired Canadian patentCanada
Method for oxidizing groups to carboxylic acids under basic conditions
CA 1261845 A · Owner: Basf Aktiengesellschaft · Inventors: Daniels, Williams A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a novel process for the preparation of carboxylic acids from alkyl groups under basic conditions utilizing oxides of copper cobalt and, silver.
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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 16, 1984
GrantedSeptember 26, 1989
Term endedSeptember 26, 2006
Patent numberCA 1261845 A
Classification (IPC)C07C63/16 +2 more
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.