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Expired Canadian patentCanada

End-user electrical load controller

CA 2498686 C · Owner: Terra Power Systems Inc. · Inventors: Delisle, Marc; Lenarduzzi, Frank; Gough, Tom

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-user load controller that can be used in an electrical energy supply system for controlling electrical energy to an end-user load is disclosed. The controller periodically evaluates whether the load should be on or off based on comparisons of load- operating information and system emergency information to predetermined criteria which is provided to the controller from time to time. T'he load is switched on or off depending upon the load-operating information as compared to the predetermine criteria. Also the load is switched off depending on the system emergency information as compared to the predetermined criteria regardless of the load-operating information.

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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 February 28, 2005 and granted February 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 2005
GrantedFebruary 19, 2013
Term endedFebruary 28, 2025
Patent numberCA 2498686 C
Classification (IPC)H02H3/06 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 28, 2005Patent grantedFeb 19, 2013Term endedFeb 28, 2025

Sources & verification

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