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Expired European patentEurope

A high voltage converter circuit

EP 0868014 B1 · Applicant: ASEA BROWN BOVERI AB

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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.

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Why it's free to use

  • Filed February 28, 1998 and granted August 27, 2008. A European patent lasts at most 20 years from filing, so its term ended February 28, 2018.
  • 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 August 28, 2023.
  • 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.
FiledFebruary 28, 1998
PublishedSeptember 30, 1998
GrantedAugust 27, 2008
Term endedFebruary 28, 2018
Application numberEP 98103555
Classification (CPC)H02M1/08 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedFeb 28, 1998PublishedSep 30, 1998Patent grantedAug 27, 2008Term endedFeb 28, 2018

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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