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Expired Canadian patentCanada

Metal halogen battery system

CA 1187932 A · Owner: Energy Development Associates, Inc. · Inventors: Rowan, John W.; Galloway, James H.; Kiwalle, Jozef

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Abstract From the Canadian patent

A metal halogen battery construction with the, improved combination comprising at least one cell having a, positive electrode and a negative electrode for contact with aqueous electrolyte containing the material of said metal and halogen, sump means wherein the electrolyte is collected store means wherein halogen hydrate is formed and stored as part of an aqueous material, circulation means for transmitting electrolyte through the battery, conduit means for transmitting halogen gas formed in the cell to hydrate forming means associated with the store means, fluid jet pump means operative to cause circulation of gases from the sump including hydrogen and halogen to contact a reactor means …

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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 May 28, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 6, 1983
GrantedMay 28, 1985
Term endedMay 28, 2002
Patent numberCA 1187932 A
Classification (IPC)H01M8/18

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 6, 1983Patent grantedMay 28, 1985Term endedMay 28, 2002

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