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Expired Canadian patentCanada

High temperature reference electrode

CA 1096940 A · Owner: The Babcock & Wilcox Company · Inventors: Monter, James V.; Theus, George J.; Sorenson, James P.

CIPO record

Overview

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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 hydrogen reference electrode is disclosed which is applicable to measuring systems for determining the oxygen content in high temperature water. The reference electrode is formed as a closed end tube of Palladium-Silver alloy material pressurized with hydrogen gas and enclosed in a perforated sleeve which allows water to be trapped in the space between the alloy tube and the sleeve where the water is saturated with hydrogen permeating through the wall of the alloy tube.

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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 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
  • 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 6, 1978
GrantedMarch 3, 1981
Term endedMarch 3, 1998
Patent numberCA 1096940 A
Classification (IPC)G01N27/30 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedApril 6, 1978Patent grantedMarch 3, 1981Term endedMarch 3, 1998

Sources & verification

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