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Expired European patentEurope

A price tag deactivator

EP 0448536 B1 · Applicant: Esselte Meto International GmbH

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 March 19, 1991 and granted May 7, 1997. A European patent lasts at most 20 years from filing, so its term ended March 19, 2011.
  • 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 September 19, 2016.
  • 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.
FiledMarch 19, 1991
PublishedSeptember 25, 1991
GrantedMay 7, 1997
Term endedMarch 19, 2011
Application numberEP 91850071
Classification (CPC)G06K7/10881 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedMarch 19, 1991PublishedSep 25, 1991Patent grantedMay 7, 1997Term endedMarch 19, 2011

Sources & verification