Expired Canadian patentCanada
Solvents for the catalytic process for making polyhydric alcohols
CA 1084951 A · Owner: Union Carbide Corporation · Inventors: Kaplan, Leonard
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention concerns making alkane polyols and monohydric alcohols by reacting hydrogen and oxides of carbon in the presence of a rhodium carbonyl complex dissolved in a crown ether. 1.
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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 September 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 1977
GrantedSeptember 2, 1980
Term endedSeptember 2, 1997
Patent numberCA 1084951 A
Classification (IPC)C07C31/18 +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.