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Expired Canadian patentCanada

Method and apparatus for electrochemical analysis of solutions

CA 1250618 A · Owner: Ceskoslavenska Akademie Ved · Inventors: Tenygl, Jiri

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Abstract From the Canadian patent

Method and equipment for the electrochemical analysis of solutions which consists in the measurement of an electric signal between a mercury column in a capillary and a reference electrode which are in contact with the analyzed solution sucked into the capillary. The mercury column in the capillary pulsates during the measurement. Current or voltage may be measured as the electric signal. An equipment for the analysis of microlitre volumes of solutions consists of a vessel for the analyzed solution provided with an inlet and outlet of the analyzed solution and a reference electrode, whereas the capillary is connected to the cell for the analyzed solution by one end and to an equipment for …

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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 February 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 28, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 15, 1986
GrantedFebruary 28, 1989
Term endedFebruary 28, 2006
Patent numberCA 1250618 A
Classification (IPC)G01N27/30 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedMay 15, 1986Patent grantedFeb 28, 1989Term endedFeb 28, 2006

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