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Expired European patentEurope

Logic circuit

EP 0758820 B1 · Applicant: KABUSHIKI KAISHA TOSHIBA

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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 August 14, 1996 and granted January 5, 2000. A European patent lasts at most 20 years from filing, so its term ended August 14, 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 February 14, 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.
FiledAugust 14, 1996
PublishedFebruary 19, 1997
GrantedJanuary 5, 2000
Term endedAugust 14, 2016
Application numberEP 96113071
Classification (CPC)H03K3/037 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedAug 14, 1996PublishedFeb 19, 1997Patent grantedJan 5, 2000Term endedAug 14, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.