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Expired European patentEurope

Method for estimating the position of a subscriber station of a radio communication system and network device

EP 1668942 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 July 19, 2004 and granted March 25, 2009. A European patent lasts at most 20 years from filing, so its term ended July 19, 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.
FiledJuly 19, 2004
PublishedJune 14, 2006
GrantedMarch 25, 2009
Term endedJuly 19, 2024
Application numberEP 04766263
Classification (CPC)H04W64/00

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedJuly 19, 2004PublishedJune 14, 2006Patent grantedMarch 25, 2009Term endedJuly 19, 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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