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Expired Canadian patentCanada

Electrode terminal contact

CA 1196057 A · Owner: Duracell International Inc. · Inventors: Gurrie, Francis E.; Klein, Gerhart P.; Barrella, Joseph N.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Terminal contact is made between an electrode in an electrochemical cell and the external terminal therefor by capture of an electrically conductive portion of said electrode within or by a member of a compressively formed seal of the cell.

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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 October 29, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 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.
FiledAugust 25, 1983
GrantedOctober 29, 1985
Term endedOctober 29, 2002
Patent numberCA 1196057 A
Classification (IPC)H01M2/04 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedAug 25, 1983Patent grantedOct 29, 1985Term endedOct 29, 2002

Sources & verification

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