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Expired European patentEurope

Frequency measurement test circuit and semiconductor integrated circuit having the same

EP 1024367 B1 · Applicant: NEC CORPORATION

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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 January 26, 2000 and granted November 16, 2005. A European patent lasts at most 20 years from filing, so its term ended January 26, 2020.
  • 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 July 26, 2025.
  • 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.
FiledJanuary 26, 2000
PublishedAugust 2, 2000
GrantedNovember 16, 2005
Term endedJanuary 26, 2020
Application numberEP 00101517
Classification (CPC)G01R23/15

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJan 26, 2000PublishedAug 2, 2000Patent grantedNov 16, 2005Term endedJan 26, 2020

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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