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Expired Canadian patentCanada

Battery end connector

CA 2118705 C · Owner: Gp Batteries International Limited · Inventors: Juergens, Tristan 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

An end connector (24) for a battery (10) in which a set of interleafing battery plates (20, 40) is electrically and mechanically connected with a cast-on element to form a secure attachment with no discontinuities. The preferred embodiment utilizes a set of lead or lead alloy plates having an age that is immersed into a mold of molten material that forms the end connector.

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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 September 9, 1992 and granted September 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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.
FiledSeptember 9, 1992
GrantedSeptember 7, 1999
Term endedSeptember 9, 2012
Patent numberCA 2118705 C
Classification (IPC)H01M2/26 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedSep 9, 1992Patent grantedSep 7, 1999Term endedSep 9, 2012

Sources & verification

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