Patent Yard Sign in
European application, no grantEurope

Method and system for changing security information in a computer network

EP 1493241 A1 · Applicant: Ipass, Inc.

EPO PDF

Overview

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

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed August 14, 2002 and never granted as a European patent. Had it been granted, its 20-year term would have ended August 14, 2022.
  • 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.
FiledAugust 14, 2002
PublishedJanuary 5, 2005
GrantedNever granted
Term endedAugust 14, 2022
Application numberEP 02757134
Classification (CPC)H04L63/068 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedAug 14, 2002PublishedJan 5, 2005Term endedAug 14, 2022

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.