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Expired Canadian patentCanada

Battery with modular air cathode and anode cage

CA 1287101 C · Owner: Schue, Thomas J. · Inventors: Pohto, Gerald R.; Genodman, Yury; Lakatos, Leslie K.

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A battery assembly of the consumable metal anode type has now been constructed for ready assembly as well as disassembly. In a non-conductive and at least substantially inert cell body, space is provided for receiving an open-structured, non-consumable anode cage. The cage has an open top for facilitating insertion of an anode. A modular cathode is used, comprising a peripheral current conductor frame clamped about a grid reinforced air cathode in sheet form. The air cathode may be double gridded. The cathode frame can be sealed during, assembly, with electrolyte-resistant-sealant as well as with adhesive. The resulting cathode module can be assembled outside the cell body and readily …

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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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 10, 1987
GrantedJuly 30, 1991
Term endedJuly 30, 2008
Patent numberCA 1287101 C
Classification (IPC)H01M12/06 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 10, 1987Patent grantedJuly 30, 1991Term endedJuly 30, 2008

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