Patent Yard Sign in
Expired European patentEurope

System and method of bootstrapping a temporary public-key infrastructure from a cellular telecommunication authentication and billing infrastructure

EP 1669955 B1 · Applicant: Nokia Corporation

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 15, 2001 and granted September 25, 2019. A European patent lasts at most 20 years from filing, so its term ended August 15, 2021.
  • 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 15, 2001
PublishedJune 14, 2006
GrantedSeptember 25, 2019
Term endedAugust 15, 2021
Application numberEP 05024336
Classification (CPC)G06Q20/02 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedAug 15, 2001PublishedJune 14, 2006Patent grantedSep 25, 2019Term endedAug 15, 2021

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.