Expired Canadian patentCanada
Process for making 1,3-glycols from epoxides
CA 1279657 C · Owner: Aguilo', Adolfo · Inventors: Smith, Brad L.; Murphy, Mark A.; Aguilo', Adolfo
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for manufacturing 1,3-glycols is disclosed. The process comprises reacting an epoxide with synthesis gas in an acidic medium in the presence of rhodium and a phosphine.
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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 January 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 11, 1987
GrantedJanuary 29, 1991
Term endedJanuary 29, 2008
Patent numberCA 1279657 C
Classification (IPC)C07C29/36 +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.