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Expired European patentEurope

Authentication and update of the generation of session keys between a service network node and at least one communications terminal with the aid of an identification card

EP 1680906 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 October 29, 2004 and granted January 2, 2008. A European patent lasts at most 20 years from filing, so its term ended October 29, 2024.
  • 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.
FiledOctober 29, 2004
PublishedJuly 19, 2006
GrantedJanuary 2, 2008
Term endedOctober 29, 2024
Application numberEP 04818143
Classification (CPC)H04L63/126 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedOct 29, 2004PublishedJuly 19, 2006Patent grantedJan 2, 2008Term endedOct 29, 2024

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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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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