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Expired Canadian patentCanada

Electrochemical cell simulating circuit arrangement

CA 1191610 A · Owner: International Business Machines Corporation · Inventors: Kanazawa, Kay K.

CIPO record

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Abstract From the Canadian patent

Abstract, An electronic circuit arrangement effecting current flow simulating the faradaic current oxidation, reduction potential and the like of an electrochemical cell encompasses two key concepts. The first recognizes that since the semi-integral of the cell current effectively deconvolves the diffusion aspect of the phenomenon with the resultant describing the surface concentration of reacted species, then the semiderivative of a function describing a surface concentration of reacted species results in an output representing the cell current, including diffusion. The second is embodied in a circuit arrangement properly simulating this concentration behavior cell double layer potential …

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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 6, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 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.
FiledDecember 15, 1982
GrantedAugust 6, 1985
Term endedAugust 6, 2002
Patent numberCA 1191610 A
Classification (IPC)G06G7/58 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedDec 15, 1982Patent grantedAug 6, 1985Term endedAug 6, 2002

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