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Expired Canadian patentCanada

Electrode assembly with rotary permeable electrode

CA 1289909 C · Owner: Imperial Chemical Industries Plc · Inventors: Ramshaw, Colin

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The disclosure is directed to an electrode assembly for effecting electrochemical reaction between two fluid phases the first of which is liquid, which apparatus comprises: an electrically charged electrode permeable to the fluids, said electrode being rotatable about an axis thereof means for supplying the first fluid phase to the electrode and, means for removing a reaction product of the two phases from the electrode, characterised in that the apparatus comprises: means for containing the first fluid phase in contact with and permeated within the electrode and, means for charging the second phase to said containing means so as to allow the first and second fluid phases to mix within the …

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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 October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 18, 1986
GrantedOctober 1, 1991
Term endedOctober 1, 2008
Patent numberCA 1289909 C
Classification (IPC)C25B9/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJune 18, 1986Patent grantedOct 1, 1991Term endedOct 1, 2008

Sources & verification

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