Patent Yard Sign in
Expired Canadian patentCanada

Process and apparatus for the continuous thermal cracking of hydrocarbon oils and hydrocarbon mixtures thus prepared

CA 1248041 A · Owner: Shell Canada Limited · Inventors: Blauwhoff, Petrus M.M.; Bukkems, Franciscus H.J.; Westerman, David W.B.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Process and apparatus for the continuous thermal cracking of hydrocarbon oils, which process comprises heating a hydrocarbon oil feed, introducing the hot feed into a soaking vessel having, its interior divided into a plurality of consecutive intercon-, nected compartments, and causing hot liquid to pass through the consecutive compartments prior to withdrawal of liquid material from the soaking vessel, and wherein gas present in each compartment is collected and withdrawn separately from the vessel. (Figures 1/4)

Read the whole patent

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 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 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.
FiledAugust 16, 1984
GrantedJanuary 3, 1989
Term endedJanuary 3, 2006
Patent numberCA 1248041 A
Classification (IPC)C10G9/00 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedAug 16, 1984Patent grantedJan 3, 1989Term endedJan 3, 2006

Sources & verification

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