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Expired European patentEurope

Compensation of frequency offset in quadrature demodulators

EP 1282279 B1 · Applicant: NEC CORPORATION

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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.

Why it's free to use

  • Filed August 1, 2002 and granted October 8, 2014. A European patent lasts at most 20 years from filing, so its term ended August 1, 2022.
  • 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.
FiledAugust 1, 2002
PublishedFebruary 5, 2003
GrantedOctober 8, 2014
Term endedAugust 1, 2022
Application numberEP 02017316
Classification (CPC)H04L27/2273 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedAug 1, 2002PublishedFeb 5, 2003Patent grantedOct 8, 2014Term endedAug 1, 2022

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