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Expired Canadian patentCanada

Float activated shutoff valve

CA 2245082 C · Owner: Gallant, Gerald Francis · Inventors: Gallant, Gerald Francis

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 fuel gas scrubber to remove liquids including a float activated shut off valve includes a pressure vessel with a dry gas outlet aperture extending through the top of the vessel as well as a wet gas inlet near the top of the vessel and a liquid outlet near the bottom of the vessel. The fuel gas scrubber including a float activated shut off valve also includes a valve seat positioned within an interior bore at a first end of a tubular housing. A float is encapsulated within the interior bore. The float is axially movable between the first end and a second end of the tubular housing. The float has a valve seat end facing the first end of the hosing and a liquid engaging end facing the second …

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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 August 14, 1998 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2020.
  • 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 14, 1998
GrantedFebruary 6, 2001
Term endedAugust 14, 2018
Patent numberCA 2245082 C
Classification (IPC)F16K31/18 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 14, 1998Patent grantedFeb 6, 2001Term endedAug 14, 2018

Sources & verification

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