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Expired Canadian patentCanada

A gravity separator for a multi-phase effluent

CA 2561447 C · Owner: Schlumberger Canada Limited · Inventors: Allouche, Francis

CIPO record

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

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Abstract From the Canadian patent

A gravity separator S separates a liquid phase O and a gas phase G from a multiphase fluid mixture E. The gravity separator comprises a collector 1 for collecting the liquid phase O, an outlet 8 for extracting the gas phase G and a draining circuit 3 coupled to the collector 1 for draining the liquid phase O out of the separator. The gravity separator S further comprises a floating assembly 2 coupled to the collector 1. The floating assembly is arranged to float at an interface GLI between the liquid phase and the gas phase so that the collector is positioned in the multiphase fluid mixture present in the gravity separator S for collecting substantially the liquid phase O.

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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

  • Filed April 29, 2005 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 2005
GrantedMay 22, 2012
Term endedApril 29, 2025
Patent numberCA 2561447 C
Classification (IPC)B01D17/02 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 29, 2005Patent grantedMay 22, 2012Term endedApril 29, 2025

Sources & verification

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