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Expired European patentEurope

Shading correction for an image scanner

EP 0868072 B1 · Applicant: SEIKO EPSON 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 March 27, 1998 and granted January 12, 2005. A European patent lasts at most 20 years from filing, so its term ended March 27, 2018.
  • 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 27, 2023.
  • 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 27, 1998
PublishedSeptember 30, 1998
GrantedJanuary 12, 2005
Term endedMarch 27, 2018
Application numberEP 98105641
Classification (CPC)H04N1/401

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedMarch 27, 1998PublishedSep 30, 1998Patent grantedJan 12, 2005Term endedMarch 27, 2018

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