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Expired European patentEurope

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EP 0123148 B1 · Applicant: Vester, Frederic, Prof. Dr.

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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 23, 1984 and granted July 27, 1988. A European patent lasts at most 20 years from filing, so its term ended March 23, 2004.
  • 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 23, 2009.
  • 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 23, 1984
PublishedOctober 31, 1984
GrantedJuly 27, 1988
Term endedMarch 23, 2004
Application numberEP 84103240
Classification (CPC)G09F11/04

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedMarch 23, 1984PublishedOct 31, 1984Patent grantedJuly 27, 1988Term endedMarch 23, 2004

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