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Expired European patentEurope

OFDM transmission/reception apparatus with selection of the optimal guard interval length

EP 1014639 B1 · Applicant: Matsushita Electric Industrial Co., Ltd.

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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 December 20, 1999 and granted August 15, 2007. A European patent lasts at most 20 years from filing, so its term ended December 20, 2019.
  • 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 June 20, 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.
FiledDecember 20, 1999
PublishedJune 28, 2000
GrantedAugust 15, 2007
Term endedDecember 20, 2019
Application numberEP 99125413
Classification (CPC)H04L27/2605

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedDec 20, 1999PublishedJune 28, 2000Patent grantedAug 15, 2007Term endedDec 20, 2019

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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