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Expired European patentEurope

Method of generating a contone map

EP 0764310 B1 · Applicant: Heidelberger Druckmaschinen Aktiengesellschaft

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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 April 3, 1996 and granted October 24, 2001. A European patent lasts at most 20 years from filing, so its term ended April 3, 2016.
  • 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 October 3, 2021.
  • 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.
FiledApril 3, 1996
PublishedMarch 26, 1997
GrantedOctober 24, 2001
Term endedApril 3, 2016
Application numberEP 96908001
Classification (CPC)G06K15/02 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedApril 3, 1996PublishedMarch 26, 1997Patent grantedOct 24, 2001Term endedApril 3, 2016

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