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Expired European patentEurope

Servers and methods for handover between two serving call control servers

EP 1776840 B1 · Applicant: Telefonaktiebolaget LM Ericsson (publ)

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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 August 13, 2004 and granted March 1, 2017. A European patent lasts at most 20 years from filing, so its term ended August 13, 2024.
  • 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 13, 2004
PublishedApril 25, 2007
GrantedMarch 1, 2017
Term endedAugust 13, 2024
Application numberEP 04775312
Classification (CPC)H04W36/0033

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedAug 13, 2004PublishedApril 25, 2007Patent grantedMarch 1, 2017Term endedAug 13, 2024

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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