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Expired European patentEurope

Color conversion method and color conversion device

EP 1507403 B1 · Applicant: NEC Corporation

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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.

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Why it's free to use

  • Filed May 22, 2003 and granted September 26, 2012. A European patent lasts at most 20 years from filing, so its term ended May 22, 2023.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledMay 22, 2003
PublishedFebruary 16, 2005
GrantedSeptember 26, 2012
Term endedMay 22, 2023
Application numberEP 03730577
Classification (CPC)H04N1/6019

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedMay 22, 2003PublishedFeb 16, 2005Patent grantedSep 26, 2012Term endedMay 22, 2023

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

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