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Expired European patentEurope

Peak reduction in ofdm using clipping and modified constellations

EP 1723759 B1 · Applicant: NTT DoCoMo, Inc.

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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 June 30, 2004 and granted August 20, 2008. A European patent lasts at most 20 years from filing, so its term ended June 30, 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.
FiledJune 30, 2004
PublishedNovember 22, 2006
GrantedAugust 20, 2008
Term endedJune 30, 2024
Application numberEP 04740496
Classification (CPC)—

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedJune 30, 2004PublishedNov 22, 2006Patent grantedAug 20, 2008Term endedJune 30, 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

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