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Expired European patentEurope

Routing system and method for synchronisation

EP 1768331 B1 · Applicant: Cisco Technology, Inc.

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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 12, 2003 and granted June 24, 2009. A European patent lasts at most 20 years from filing, so its term ended November 12, 2023.
  • 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.
FiledNovember 12, 2003
PublishedMarch 28, 2007
GrantedJune 24, 2009
Term endedNovember 12, 2023
Application numberEP 06021637
Classification (CPC)H04L45/58 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedNov 12, 2003PublishedMarch 28, 2007Patent grantedJune 24, 2009Term endedNov 12, 2023

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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