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Expired European patentEurope

Interleaver for mapping symbols on the carriers of an OFDM system

EP 1662740 B1 · Applicant: SONY UNITED KINGDOM LIMITED

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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 March 23, 2004 and granted April 30, 2008. A European patent lasts at most 20 years from filing, so its term ended March 23, 2024.
  • 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.
FiledMarch 23, 2004
PublishedMay 31, 2006
GrantedApril 30, 2008
Term endedMarch 23, 2024
Application numberEP 06075518
Classification (CPC)H04L1/0071 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedMarch 23, 2004PublishedMay 31, 2006Patent grantedApril 30, 2008Term endedMarch 23, 2024

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.