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Expired European patentEurope

A method of automatic protection switching

EP 1662706 B1 · Applicant: ZTE Corporation

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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 August 6, 2003 and granted March 23, 2011. A European patent lasts at most 20 years from filing, so its term ended August 6, 2023.
  • 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 6, 2003
PublishedMay 31, 2006
GrantedMarch 23, 2011
Term endedAugust 6, 2023
Application numberEP 03817901
Classification (CPC)H04L45/28 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedAug 6, 2003PublishedMay 31, 2006Patent grantedMarch 23, 2011Term endedAug 6, 2023

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.