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Expired Canadian patentCanada

Hydrogen generating system and hydrodehalogenation method

CA 2432402 C · Owner: Rosier, Cecile · Inventors: Rosier, Cecile; Marion, Philippe

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 hydrogen generating system characterised in that it combines a water-corrodible metal an inorganic material, said material having a specific surface capable of fixing the oxide and/or hydroxide form(s) of said metals generated during corrosion. The invention also concerns a method for generating hydrogen and its uses in particular in a hydrodehalogenation process of halogenated organic compounds present in aqueous media to be purified.

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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 21, 2001 and granted June 28, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2023.
  • 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 21, 2001
GrantedJune 28, 2011
Term endedDecember 21, 2021
Patent numberCA 2432402 C
Classification (IPC)C01B3/08 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedDec 21, 2001Patent grantedJune 28, 2011Term endedDec 21, 2021

Sources & verification

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