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Expired European patentEurope

Cell search procedure for time division duplex communication systems using code division multiple access

EP 1850497 B1 · Applicant: Interdigital Technology 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 May 24, 2000 and granted September 1, 2010. A European patent lasts at most 20 years from filing, so its term ended May 24, 2020.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by November 24, 2025.
  • 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.
FiledMay 24, 2000
PublishedOctober 31, 2007
GrantedSeptember 1, 2010
Term endedMay 24, 2020
Application numberEP 07114499
Classification (CPC)H04B1/70735 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMay 24, 2000PublishedOct 31, 2007Patent grantedSep 1, 2010Term endedMay 24, 2020

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.