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Expired European patentEurope

Power converter

EP 1051798 B1 · Applicant: Alstom Belgium S.A.

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 January 26, 1999 and granted October 13, 2004. A European patent lasts at most 20 years from filing, so its term ended January 26, 2019.
  • 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 July 26, 2024.
  • 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.
FiledJanuary 26, 1999
PublishedNovember 15, 2000
GrantedOctober 13, 2004
Term endedJanuary 26, 2019
Application numberEP 99901527
Classification (CPC)H02M7/003

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedJan 26, 1999PublishedNov 15, 2000Patent grantedOct 13, 2004Term endedJan 26, 2019

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