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EP 1022875 B1 · Applicant: Nippon Telegraph and Telephone Corporation

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 January 12, 2000 and granted June 1, 2005. A European patent lasts at most 20 years from filing, so its term ended January 12, 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 July 12, 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.
FiledJanuary 12, 2000
PublishedJuly 26, 2000
GrantedJune 1, 2005
Term endedJanuary 12, 2020
Application numberEP 00300186
Classification (CPC)H04L67/55

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJan 12, 2000PublishedJuly 26, 2000Patent grantedJune 1, 2005Term endedJan 12, 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

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