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Expired European patentEurope

Semiconductor electronic circuit with overvoltage protection device

EP 0720267 B1 · Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

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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 December 30, 1994 and granted March 21, 2001. A European patent lasts at most 20 years from filing, so its term ended December 30, 2014.
  • 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 30, 2020.
  • 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 30, 1994
PublishedJuly 3, 1996
GrantedMarch 21, 2001
Term endedDecember 30, 2014
Application numberEP 94830596
Classification (CPC)H02H3/202 +1 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedDec 30, 1994PublishedJuly 3, 1996Patent grantedMarch 21, 2001Term endedDec 30, 2014

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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