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Expired European patentEurope

Signal structure and scrambling for multicarrier transmission

EP 1280310 B1 · Applicant: NIPPON HOSO KYOKAI

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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 July 23, 2002 and granted December 23, 2009. A European patent lasts at most 20 years from filing, so its term ended July 23, 2022.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledJuly 23, 2002
PublishedJanuary 29, 2003
GrantedDecember 23, 2009
Term endedJuly 23, 2022
Application numberEP 02016273
Classification (CPC)H04L27/2601

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJuly 23, 2002PublishedJan 29, 2003Patent grantedDec 23, 2009Term endedJuly 23, 2022

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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