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Expired Canadian patentCanada

Electrokinetic device employing a non-newtonian liquid

CA 2590649 C · Owner: Paul, Phillip H. · Inventors: Paul, Phillip H.

CIPO record

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Abstract From the Canadian patent

A non-Newtonian fluid (140) is used in an electrokinetic device to produce electroosmotic flow therethrough. The nonlinear viscosity of the non-Newtonian fluid (140) allows the electrokinetic device to behave differently under different operating conditions, such as externally applied pressures and electric potentials. Electrokinetic devices can be used with non-Newtonian fluid (140) in a number of applications including but not limited to , electrokinetic pumps flow controllers, diaphragm valves, and displacement systems.

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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

  • Filed December 16, 2005 and granted June 4, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 16, 2005
GrantedJune 4, 2013
Term endedDecember 16, 2025
Patent numberCA 2590649 C
Classification (IPC)B67D99/00 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 16, 2005Patent grantedJune 4, 2013Term endedDec 16, 2025

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