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Expired Canadian patentCanada

Bipole matrix electrode

CA 1209521 A · Owner: University Of British Columbia · Inventors: Oloman, Colin W.

CIPO record

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Abstract From the Canadian patent

An electrochemical reactor particularly useful, for the production of propylene oxide is provided. The reactor comprises two spaced apart monopole electrodes and at least one electrically conducting matrix electrode disposed between the monopole electrodes. The matrix electrodes are dimensioned so that when a potential is applied across the monopole electrodes and a mixture, (i.e. an electrolyte or a mixture of electrolyte and a fluid immiscible therewith) of appropriate conductivity disposed therebetween, each matrix electrode acts as a bipole electrode. Preferably, fluid feed means is provided also for passing an immiscible fluid in particular, a gas, through the reactor simultaneously …

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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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 19, 1983
GrantedAugust 12, 1986
Term endedAugust 12, 2003
Patent numberCA 1209521 A
Classification (IPC)C25B3/02 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJuly 19, 1983Patent grantedAug 12, 1986Term endedAug 12, 2003

Sources & verification

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