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Expired European patentEurope

Self-selection of radio frequency channels to reduce co-channel and adjacent channel interference in a wireless distributed network

EP 1597927 B1 · Applicant: Nortel Networks Limited

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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 December 26, 2003 and granted January 23, 2008. A European patent lasts at most 20 years from filing, so its term ended December 26, 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.
FiledDecember 26, 2003
PublishedNovember 23, 2005
GrantedJanuary 23, 2008
Term endedDecember 26, 2023
Application numberEP 03789579
Classification (CPC)H04W24/02

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedDec 26, 2003PublishedNov 23, 2005Patent grantedJan 23, 2008Term endedDec 26, 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

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