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Expired European patentEurope

Parallel mode adaptive transversal equalizer for high-speed digital communications system

EP 0379375 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 18, 1990 and granted October 26, 1994. A European patent lasts at most 20 years from filing, so its term ended January 18, 2010.
  • 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 18, 2015.
  • 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 18, 1990
PublishedJuly 25, 1990
GrantedOctober 26, 1994
Term endedJanuary 18, 2010
Application numberEP 90300541
Classification (CPC)H04L25/03038

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedJan 18, 1990PublishedJuly 25, 1990Patent grantedOct 26, 1994Term endedJan 18, 2010

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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