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Expired Canadian patentCanada

Primary source of electrical energy using a mixture of fuel and oxidizer

CA 1322219 C · Owner: Dyer, Christopher Kenneth · Inventors: Dyer, Christopher Kenneth

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Abstract From the Canadian patent

A solid electrolyte fuel cell capable of operating with a mixture of an oxidizer and a fuel includes a permeable catalytic electrode and an impermeable catalytic electrode separated by an electron insulating ion conducting, gas permeable solid, electrolyte. The device produces charge flow in an external circuit when the permeable electrode is exposed to a mixture including an oxidizer and a fuel such as hydrogen methane or methanol. The solid electrolyte can be a hydrate aluminum oxide primarily, of the pseudoboehemite structure and either electrode can be Pt or Pd. The solidelectrolyte can be produced by exposing a bulk aluminum surface or a deposited layer of aluminum to water or water …

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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

  • Granted September 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 2010.
  • 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 12, 1989
GrantedSeptember 14, 1993
Term endedSeptember 14, 2010
Patent numberCA 1322219 C
Classification (IPC)H01M8/10

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 12, 1989Patent grantedSep 14, 1993Term endedSep 14, 2010

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