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Expired Canadian patentCanada

Improved battery design

CA 2222155 C · Owner: Boundless Corp. · Inventors: Lyman, Philip C.

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

A battery assembled in the form of a lightweight structural panel and including isolated battery cells. Each of the cells includes a honeycomb structure (44) wherein each film-like layer in the honeycomb structure is an electrode stack. Each of the electrode stacks (20) includes an elongated cathode, an elongated separator, and an elongated anode. The separator is wetted with an electrolyte solution to facilitate the electrochemical reaction. The electrochemical reaction may be that of an NiMH2 battery and , NiH battery, an Li + battery, an NiCd battery a Lead-acid battery, or any , other suitable electrochemical reaction. Alternatively the battery cell could , be composed of a …

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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

  • Filed May 24, 1996 and granted February 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 24, 1996
GrantedFebruary 26, 2002
Term endedMay 24, 2016
Patent numberCA 2222155 C
Classification (IPC)H01M10/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 24, 1996Patent grantedFeb 26, 2002Term endedMay 24, 2016

Sources & verification

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