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Expired European patentEurope

Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems

EP 1072138 B1 · Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

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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 April 14, 1998 and granted September 11, 2002. A European patent lasts at most 20 years from filing, so its term ended April 14, 2018.
  • 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 October 14, 2023.
  • 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.
FiledApril 14, 1998
PublishedJanuary 31, 2001
GrantedSeptember 11, 2002
Term endedApril 14, 2018
Application numberEP 98924116
Classification (CPC)H04L27/266 +1 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedApril 14, 1998PublishedJan 31, 2001Patent grantedSep 11, 2002Term endedApril 14, 2018

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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