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Method and system for controlling an AC-DC converter system

EP 0162425 A1 · Applicant: KABUSHIKI KAISHA TOSHIBA

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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.

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Why it's free to use

  • Filed May 17, 1985 and never granted as a European patent. Had it been granted, its 20-year term would have ended May 17, 2005.
  • 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 November 17, 2010.
  • 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.
FiledMay 17, 1985
PublishedNovember 27, 1985
GrantedNever granted
Term endedMay 17, 2005
Application numberEP 85106101
Classification (CPC)H02J3/36 +1 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedMay 17, 1985PublishedNov 27, 1985Term endedMay 17, 2005

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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