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Expired Canadian patentCanada

Process for the preparation of a hydrocarbonaceous distillate and a residue, and bitumen compositions containing a residue thus prepared

CA 1279597 C · Owner: Shell Canada Limited · Inventors: Syrier, Johannes Leopold Marie; Van Gooswilligen, Gerrit; Breuker, Jacobus Hendrikus

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Abstract From the Canadian patent

Process for the preparation of a hydrocarbonaceous distillate and a hydrocarbonaceous residue which comprises, mixing a residual fraction of a product obtained by catalytic cracking or hydrocracking a hydrocarbonaceous feedstock, with a second hydrocarbonaceous fraction having such a boiling range that at least 50%w boils at a temperature above 400°C, and subjecting the resulting mixture to a subatmospheric distillation yielding at least one distillate fraction and one residue. The residue this prepared is a suitable component in bitumen compositions. BN38.005

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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.
FiledMarch 10, 1987
GrantedJanuary 29, 1991
Term endedJanuary 29, 2008
Patent numberCA 1279597 C
Classification (IPC)C10C3/06 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 10, 1987Patent grantedJan 29, 1991Term endedJan 29, 2008

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