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Expired Canadian patentCanada

Water valve

CA 1189417 A · Owner: Coolair Corporation Pte. Ltd. · Inventors: Seeley, Frederic F.

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 float valve in this invention has a hollow body having a spigot adjacent an orifice a valve, seat surrounding the orifice, a float arm pivoted to the hollow body, and an abutment surface on the float arm engageable against an elastomeric valve member when carried by the spigot.

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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 June 25, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 28, 1983
GrantedJune 25, 1985
Term endedJune 25, 2002
Patent numberCA 1189417 A
Classification (IPC)F16K31/24 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMarch 28, 1983Patent grantedJune 25, 1985Term endedJune 25, 2002

Sources & verification

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