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Expired Canadian patentCanada

Releasable sensor for faulted circuit detector

CA 2106888 C · Owner: Cooper Power Systems, Inc. · Inventors: Van Lankvelt, Theodore

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 faulted circuit sensor is disposed in a releasable and reusable clamp mountable on an electrical conductor. The clamp includes a body for receiving the faulted circuit sensor indicating circuitry and a pair of hinged fingers which actuate over the conductor to grip the clamp to the conductor and align the fault indicating circuitry with respect to the conductor. The fingers include a triggering arm which causes the arms to engage over the conductor when the conductor is properly aligned in the proximity of the clamp.

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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 24, 1993 and granted February 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2015.
  • 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 24, 1993
GrantedFebruary 19, 2002
Term endedSeptember 24, 2013
Patent numberCA 2106888 C
Classification (IPC)G01R31/08 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedSep 24, 1993Patent grantedFeb 19, 2002Term endedSep 24, 2013

Sources & verification

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