Patent Yard Sign in
Expired European patentEurope

Method and apparatus for minimizing artifacts in images produced by error diffusion halftoning utilizing ink reduction processing

EP 0707412 B1 · Applicant: SEIKO EPSON CORPORATION

EPO PDF

Overview

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

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed October 11, 1995 and granted July 31, 2002. A European patent lasts at most 20 years from filing, so its term ended October 11, 2015.
  • 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 April 11, 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.
FiledOctober 11, 1995
PublishedApril 17, 1996
GrantedJuly 31, 2002
Term endedOctober 11, 2015
Application numberEP 95307167
Classification (CPC)H04N1/4052

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedOct 11, 1995PublishedApril 17, 1996Patent grantedJuly 31, 2002Term endedOct 11, 2015

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.