Expired Canadian patentCanada
Transition metal complex catalyzed reactions
CA 1312094 C · Owner: Union Carbide Corporation · Inventors: Maher, John Michael; Bryant, David Robert
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of an organic polymer additive to minimize or prevent the rhodium of a rhodiumorganophosphite complex catalyst from precipitating from solution during a liquid recycle, hydroformylation process. D-14054-4
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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 December 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 20, 1987
GrantedDecember 29, 1992
Term endedDecember 29, 2009
Patent numberCA 1312094 C
Classification (IPC)C07C45/50 +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.