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Canadian application, no grantCanada

Method and device for purge of inert gas admixture

CA 2428689 A1 · Owner: Obschestvo S Ogranichennoi Otvetstvennostiyu "Intensis" · Inventors: Karichev, Ziya Ramizovich

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 relates to fuel elements. The inventive device is embodied in the form of a battery of fuel elements and comprises at least two series connected, according to a working gas, fuel elements disposed prior to an output main line for gas discharge, and an input main line. The inventive method consists in supplying the working gas to the input main line and periodically discharging said working gas from the output main line. At the moment of discharge of a gas from the battery the working gas is supplied , from the input main line to the corresponding input of at least one series connected fuel element disposed prior to the output main line for discharging the working gas …

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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 June 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 21, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2024.
  • 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 21, 2002
GrantedNo grant recorded
Term endedJune 21, 2022
Patent numberCA 2428689 A1
Classification (IPC)—

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJune 21, 2002Term endedJune 21, 2022

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