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Expired European patentEurope

Channel estimator and method for estimating a channel transfer function and apparatus and method for providing pilot sequences

EP 1716680 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 February 19, 2004 and granted August 27, 2008. A European patent lasts at most 20 years from filing, so its term ended February 19, 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.
FiledFebruary 19, 2004
PublishedNovember 2, 2006
GrantedAugust 27, 2008
Term endedFebruary 19, 2024
Application numberEP 04712534
Classification (CPC)H04L5/0026 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedFeb 19, 2004PublishedNov 2, 2006Patent grantedAug 27, 2008Term endedFeb 19, 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

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