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Expired European patentEurope

Method and communication network with conversion of a bit stream in transport frames

EP 0831613 B1 · Applicant: Koninklijke KPN N.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 November 21, 1996 and granted August 20, 2003. A European patent lasts at most 20 years from filing, so its term ended November 21, 2016.
  • 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 May 21, 2022.
  • 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.
FiledNovember 21, 1996
PublishedMarch 25, 1998
GrantedAugust 20, 2003
Term endedNovember 21, 2016
Application numberEP 96203276
Classification (CPC)H04L1/20 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedNov 21, 1996PublishedMarch 25, 1998Patent grantedAug 20, 2003Term endedNov 21, 2016

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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