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Expired European patentEurope

Dynamic channel selection based on interference and spectral usage in a multicarrier cellular communication system

EP 1662834 B1 · Applicant: Siemens Mobile Communications S.p.A.

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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 November 24, 2004 and granted January 9, 2008. A European patent lasts at most 20 years from filing, so its term ended November 24, 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.
FiledNovember 24, 2004
PublishedMay 31, 2006
GrantedJanuary 9, 2008
Term endedNovember 24, 2024
Application numberEP 04425874
Classification (CPC)H04L5/0005 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedNov 24, 2004PublishedMay 31, 2006Patent grantedJan 9, 2008Term endedNov 24, 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

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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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