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Expired Canadian patentCanada

Well effluent separator

CA 1251403 A · Owner: Smith, Ross · Inventors: Smith, Ross; Jensen, Roy

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A device for separating well effluents comprises an enclosed storage tank having a conduit which is substantially parallel to the bottom of the tank but spaced well above it. The conduit has first and second ends, a plug closing the latter. Well effluent is introduced into the first end of the conduit and flows to the second end where the closed end thereof effects a reversal in the flow of the well effluents back towards the first end of the conduit. The conduit has upwardly directed apertures which allow gases from the well effluents to escape into the upper section of the storage tank and also provides downwardly directed apertures which allow a slurry of solid particles and fluids to …

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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 March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 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.
FiledNovember 26, 1987
GrantedMarch 21, 1989
Term endedMarch 21, 2006
Patent numberCA 1251403 A
Classification (IPC)B01D19/00

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedNov 26, 1987Patent grantedMarch 21, 1989Term endedMarch 21, 2006

Sources & verification

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