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Expired European patentEurope

Method for utilizing digital data networks for the transmission of data via voice connection paths

EP 1072146 B1 · Applicant: Deutsche Telekom AG

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Overview

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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 27, 1999 and granted July 16, 2008. A European patent lasts at most 20 years from filing, so its term ended February 27, 2019.
  • 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 August 27, 2024.
  • 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 27, 1999
PublishedJanuary 31, 2001
GrantedJuly 16, 2008
Term endedFebruary 27, 2019
Application numberEP 99913196
Classification (CPC)H04L12/2854 +1 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedFeb 27, 1999PublishedJan 31, 2001Patent grantedJuly 16, 2008Term endedFeb 27, 2019

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.