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Expired European patentEurope

Method of and system for disconnecting faulty distribution line section from power distribution line

EP 0554553 B1 · Applicant: KABUSHIKI KAISHA TOSHIBA

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Overview

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 16, 1992 and granted July 17, 1996. A European patent lasts at most 20 years from filing, so its term ended December 16, 2012.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by June 16, 2018.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledDecember 16, 1992
PublishedAugust 11, 1993
GrantedJuly 17, 1996
Term endedDecember 16, 2012
Application numberEP 92121394
Classification (CPC)H02H7/261 +1 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedDec 16, 1992PublishedAug 11, 1993Patent grantedJuly 17, 1996Term endedDec 16, 2012

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