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Expired Canadian patentCanada

Electrochemical cell having a fibrous framework

CA 1084584 A · Owner: Stamicarbon B.V. · Inventors: Van Gasse, Rene L.E.; Alfenaar, Marinus

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

An electrochemical cell or battery in a monolithic form is produced, in which a series of planar sheet electrodes are disposed in a framework of a fibrous material which contains a thermosetting resin. The process for forming the cell or battery is also disclosed.

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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 August 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 1997.
  • 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 6, 1976
GrantedAugust 26, 1980
Term endedAugust 26, 1997
Patent numberCA 1084584 A
Classification (IPC)H01M8/00 +2 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedAug 6, 1976Patent grantedAug 26, 1980Term endedAug 26, 1997

Sources & verification

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