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Expired Canadian patentCanada

Group of at least two gas-flow reactors supplied with chemical neutralization and/or sorption agent

CA 2642121 C · Owner: Malard, Thierry · Inventors: Cloutier, Bernard; Malard, Thierry

CIPO record

Overview

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Abstract From the Canadian patent

The present invention relates to a group of at least two gas-flow reactors (21 22, 2'2, ... 2n, 2'n) preferably with an ascending gas flow (3) which are supplied on the one hand, in parallel with gas and on the other hand with a chemical neutralization and/or sorption agent of the pulverulent material type that is capable of adsorbing effluents present in said gas flow (3) by bringing said chemical neutralization and/or sorption agent in contact with said gas flow (3) said at least two reactors (21, 22, 2'2 ... 2n, 2'n) having means (10) for collecting said chemical neutralization and/or sorption agent after it has been brought into contact with said gas flow (3) characterized in that at …

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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 23, 2006 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2026.
  • 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.
FiledFebruary 23, 2006
GrantedOctober 2, 2012
Term endedFebruary 23, 2026
Patent numberCA 2642121 C
Classification (IPC)B01D53/12 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 23, 2006Patent grantedOct 2, 2012Term endedFeb 23, 2026

Sources & verification

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