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Expired Canadian patentCanada

Method for the mixed recycling of lithium-based anode batteries and cells

CA 2559928 C · Owner: Foudraz, Jean-Claude · Inventors: Tedjar, Farouk; Foudraz, Jean-Claude

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Abstract From the Canadian patent

A method for treating all types of lithium anode batteries and cells via a hydrometallurgical process at room temperature. Said method is used to treat under safe conditions, cells and batteries including a metallic lithium anode or an anode containing lithium incorporated in an anode inclusion compound whereby the metallic casings, the electrode contacts the cathode metal oxides , and the lithium salts can be separated and recovered.

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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 April 4, 2005 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 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.
FiledApril 4, 2005
GrantedSeptember 24, 2013
Term endedApril 4, 2025
Patent numberCA 2559928 C
Classification (IPC)H01M10/54 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 4, 2005Patent grantedSep 24, 2013Term endedApril 4, 2025

Sources & verification

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