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Canadian application, no grantCanada

Battery construction and method of connecting terminals to electrodes

CA 2071791 A1 · Owner: Mix, Renard E. · Inventors: Brutchen, George W.; Mix, Renard E.

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

Abstract Of The Disclosure A bi-polar battery has terminals of an electrically conductive lead based or other low melt point metal with connector straps fused to the rows of lead based lugs of electrode plates, that extend from the interior of a heat sensitive battery case of plastics material through slotted pockets formed in the case walls that contain beds of glass beads which effectively isolate the electrode plates from the straps while providing support for the lugs. The ends of the battery case have insulator and positioning sections into which premolded terminals are fitted so that they can be subsequently heated into a melt for amalgamation to the lugs without heat damage to the …

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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 June 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2014.
  • 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 22, 1992
GrantedNo grant recorded
Term endedJune 22, 2012
Patent numberCA 2071791 A1
Classification (IPC)H01M2/26 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 22, 1992Term endedJune 22, 2012

Sources & verification

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