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Expired Canadian patentCanada

Fuel cartridges for fuel cells and methods for making same

CA 2540318 C · Owner: Lefebvre, Yann · Inventors: Lefebvre, Yann; Doucet, Michel; Frigiere, Rene

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

Fuel supplies for fuel cells are disclosed. The fuel supplies can be a pressurized or non-pressurized cartridge that can be used with any fuel cells including but not limited to, direct methanol fuel cell or reformer fuel cell. In one aspect, a fuel supply may contain a reaction chamber to convert fuel to hydrogen. The fuel supplies may also contain a pump. The fuel supply may have a valve connecting the fuel to the fuel cell and a vent to vent gas from the , fuel supply. Methods for forming various fuel supplies are also disclosed.

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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 October 5, 2004 and granted August 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 5, 2004
GrantedAugust 14, 2012
Term endedOctober 5, 2024
Patent numberCA 2540318 C
Classification (IPC)C01B3/02

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedOct 5, 2004Patent grantedAug 14, 2012Term endedOct 5, 2024

Sources & verification

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