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A phase shift triggering circuit for thyristor and an integrated module of the triggering circuit and the thyristor

EP 0966788 A1 · Applicant: Cao, Jie

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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 October 17, 1996 and never granted as a European patent. Had it been granted, its 20-year term would have ended October 17, 2016.
  • 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 April 17, 2022.
  • 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.
FiledOctober 17, 1996
PublishedDecember 29, 1999
GrantedNever granted
Term endedOctober 17, 2016
Application numberEP 96934326
Classification (CPC)H02M7/1623

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedOct 17, 1996PublishedDec 29, 1999Term endedOct 17, 2016

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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