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Expired European patentEurope

Method for error detection in a packet-based message distribution system

EP 1803261 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 September 19, 2005 and granted November 12, 2008. A European patent lasts at most 20 years from filing, so its term ended September 19, 2025.
  • 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.
FiledSeptember 19, 2005
PublishedJuly 4, 2007
GrantedNovember 12, 2008
Term endedSeptember 19, 2025
Application numberEP 05797012
Classification (CPC)H04L69/14 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedSep 19, 2005PublishedJuly 4, 2007Patent grantedNov 12, 2008Term endedSep 19, 2025

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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