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Expired Canadian patentCanada

Steam profile liquid/vapour separator

CA 1295952 C · Owner: Moore, Boyd Bennett · Inventors: Wicks, Moye, Iii; Moore, Boyd Bennett

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 network of bristles extending across a steam injection well provides affirmative liquid/vapour separation and control. The orientation of the bristles is controlled to direct the liquid toward or away form the borehole wall as desired. DYRH04

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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 February 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 1986
GrantedFebruary 18, 1992
Term endedFebruary 18, 2009
Patent numberCA 1295952 C
Classification (IPC)B01D19/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedDec 23, 1986Patent grantedFeb 18, 1992Term endedFeb 18, 2009

Sources & verification

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