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Canadian application, no grantCanada

Method for assisted regulation of water quantity in a medium by the action of an electrical current

CA 2335388 A1 · Owner: Mastchenko, Alain · Inventors: Chasteau, Francois; Mastchenko, Alain

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 invention concerns a method for controlling and regulating water quantity in a medium which consists in applying a pulsed unidirectional electric field between one or two electrodes inserted in the treated medium with sequential inversion of the generator polarities whereby a unidirectional potential difference is established by selecting said field orientation by inversion of the generator polarities to modify the direction of the water draining the aim being to humidify or drain the treated medium. The electrode can consist of a metallic part already present in the medium. The moisture measuring probes and the treating electrodes are inserted in the medium and connected to 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

  • Filed February 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 27, 1998
GrantedNo grant recorded
Term endedFebruary 27, 2018
Patent numberCA 2335388 A1
Classification (IPC)E04B1/70

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 27, 1998Term endedFeb 27, 2018

Sources & verification

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