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Expired Canadian patentCanada

Circuit interrupting device and system utilizing electromechanical reset

CA 2515059 C · Owner: Richter, James · Inventors: Chan, David; Stewart, Stephen; Calixto, Armando

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A GFCI device (10) which has reverse wiring protection is provided where no power is present at the face terminals (16 24) even when the device is , reverse wired. The device also has a reset lockout feature that prevents it from being reset after having been tripped if the circuit interrupting portion of the device is non-operational.

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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 January 30, 2004 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 2004
GrantedMarch 20, 2012
Term endedJanuary 30, 2024
Patent numberCA 2515059 C
Classification (IPC)H02H3/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJan 30, 2004Patent grantedMarch 20, 2012Term endedJan 30, 2024

Sources & verification

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