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Expired European patentEurope

Field sequential liquid crystal colour display

EP 0875880 B1 · Applicant: Uchida, Tatsuo

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Overview

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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 September 15, 1997 and granted December 17, 2003. A European patent lasts at most 20 years from filing, so its term ended September 15, 2017.
  • 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 March 15, 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.
FiledSeptember 15, 1997
PublishedNovember 4, 1998
GrantedDecember 17, 2003
Term endedSeptember 15, 2017
Application numberEP 97116026
Classification (CPC)G09G3/3406 +1 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedSep 15, 1997PublishedNov 4, 1998Patent grantedDec 17, 2003Term endedSep 15, 2017

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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