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Expired Canadian patentCanada

600-amp hot stick-operable screw and pin-and-socket assembled connector system

CA 2022949 C · Owner: Thomas & Betts International, Inc. · Inventors: Luzzi, Glenn J.

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 high voltage cable is fixed to the single leg of a 600-Amp "T" connector having a first of its cross bar arms mounted upon an insulating bushing fixed to a wall of the apparatus housing it is to serve. Spaced apart from such insulating bushing and mounted upon the same wall is an apparatus bushing to which is connected a bushing extender. An "h" shaped link member is employed to couple the cable via the other of its "T" connector cross bar arms to the apparatus bushing via the bushing extender. One of the short arms of the link member contains a pin/socket arrangement to make an electrical connection with the cable. The remaining short arm contains a screw-operated member operated by 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 August 8, 1990 and granted October 26, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 8, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2012.
  • 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 8, 1990
GrantedOctober 26, 1993
Term endedAugust 8, 2010
Patent numberCA 2022949 C
Classification (IPC)H01R13/62 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 8, 1990Patent grantedOct 26, 1993Term endedAug 8, 2010

Sources & verification

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