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Expired Canadian patentCanada

Transition metal complex catalyzed reactions

CA 1264055 C · Owner: Abatjoglou, Anthony George · Inventors: Billig, Ernst; Maher, John Michael; Murray, Rex Eugene

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions and transition metaldiorganophosphite catalysts are disclosed.

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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 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 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.
FiledJanuary 25, 1985
GrantedDecember 27, 1989
Term endedDecember 27, 2006
Patent numberCA 1264055 C
Classification (IPC)C07C45/50 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedJan 25, 1985Patent grantedDec 27, 1989Term endedDec 27, 2006

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.