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Expired European patentEurope

Loop prevention in networks

EP 1054530 B1 · Applicant: Hewlett-Packard Company

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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 April 19, 2000 and granted January 11, 2006. A European patent lasts at most 20 years from filing, so its term ended April 19, 2020.
  • 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 October 19, 2025.
  • 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.
FiledApril 19, 2000
PublishedNovember 22, 2000
GrantedJanuary 11, 2006
Term endedApril 19, 2020
Application numberEP 00303325
Classification (CPC)H04L45/18 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedApril 19, 2000PublishedNov 22, 2000Patent grantedJan 11, 2006Term endedApril 19, 2020

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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