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Expired European patentEurope

Data framing for adaptive-block-length coding system

EP 1151435 B1 · Applicant: DOLBY LABORATORIES LICENSING 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 January 20, 2000 and granted September 4, 2002. A European patent lasts at most 20 years from filing, so its term ended January 20, 2020.
  • 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 July 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.
FiledJanuary 20, 2000
PublishedNovember 7, 2001
GrantedSeptember 4, 2002
Term endedJanuary 20, 2020
Application numberEP 00904459
Classification (CPC)G10L19/022

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJan 20, 2000PublishedNov 7, 2001Patent grantedSep 4, 2002Term endedJan 20, 2020

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