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Expired Canadian patentCanada

Anodes of composite materials and accumulators using solid anodes

CA 1190963 A · Owner: Societe Civile Dite: Societe Civile Des Composites Electrolytiques · Inventors: Schaeffner, Pierre; Berger, Michel

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

The present invention relates to anodes of composite materials, which are formed on a support constituted by fibrils, which are coated with a conducting layer of copper of thickness comprised between 3 and 10 microns. The copper layer is covered with a layer of cadmium of thickness comprised between 3 and 6 microns and the latter is covered with a layer of zinc of thickness greater than about 20 microns.

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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 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 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.
FiledJune 10, 1983
GrantedJuly 23, 1985
Term endedJuly 23, 2002
Patent numberCA 1190963 A
Classification (IPC)H01M4/24 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJune 10, 1983Patent grantedJuly 23, 1985Term endedJuly 23, 2002

Sources & verification

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