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Expired Canadian patentCanada

Electric fence insulator

CA 1331394 C · Owner: Johnson, John I. · Inventors: Johnson, John I.

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 plastic insulator for holding electrified wire comprises a support for an electrified wire and a connector device for selectively connecting the support to structures of different types. The connector device includes arms which have fastener receiving holes or apertures by means of which the support may be connected to a wooden post structure with separate fasteners. The arms also have oral apertures by means of which the support may be connected to a non-conductive rod structure without separate fasteners.

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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 9, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 9, 2011.
  • 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 29, 1989
GrantedAugust 9, 1994
Term endedAugust 9, 2011
Patent numberCA 1331394 C
Classification (IPC)H01B17/14

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 29, 1989Patent grantedAug 9, 1994Term endedAug 9, 2011

Sources & verification

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