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Expired Canadian patentCanada

Adaptive protection for recloser control

CA 2365735 C · Owner: Abb Technology Ag · Inventors: Mcelray, Jeffrey L. Sr.; Mcclure, Graeme N.; Egolf, William M.

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 recloser is adaptively controlled so that it will operate in a manner responsive to prevailing conditions such as time of day day of week, and/or load current. A protection setting group is stored in a memory accessible by the recloser controller and contains a set of instructions for controlling the recloser based on the prevailing conditions. The prevailing conditions are continuously monitored; and the control of the recloser is based on the prevailing conditions and the protection setting group.

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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 December 20, 2001 and granted November 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 2001
GrantedNovember 22, 2011
Term endedDecember 20, 2021
Patent numberCA 2365735 C
Classification (IPC)H02H3/06 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedDec 20, 2001Patent grantedNov 22, 2011Term endedDec 20, 2021

Sources & verification

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