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Expired European patentEurope

Handover in a digital cordless telephone system

EP 0686337 B1 · Applicant: AT & T WIRELESS COMMUNICATIONS PRODUCTS LIMITED

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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.

Why it's free to use

  • Filed February 23, 1994 and granted April 21, 1999. A European patent lasts at most 20 years from filing, so its term ended February 23, 2014.
  • 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 August 23, 2019.
  • 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.
FiledFebruary 23, 1994
PublishedDecember 13, 1995
GrantedApril 21, 1999
Term endedFebruary 23, 2014
Application numberEP 94906968
Classification (CPC)H04W36/18

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedFeb 23, 1994PublishedDec 13, 1995Patent grantedApril 21, 1999Term endedFeb 23, 2014

Sources & verification