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Expired European patentEurope

Printing apparatus and method having a toner saving function

EP 0661663 B1 · Applicant: NEC CORPORATION

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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 December 21, 1994 and granted March 8, 2000. A European patent lasts at most 20 years from filing, so its term ended December 21, 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 June 21, 2020.
  • 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.
FiledDecember 21, 1994
PublishedJuly 5, 1995
GrantedMarch 8, 2000
Term endedDecember 21, 2014
Application numberEP 94120316
Classification (CPC)H04N1/40 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedDec 21, 1994PublishedJuly 5, 1995Patent grantedMarch 8, 2000Term endedDec 21, 2014

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