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Expired European patentEurope

Nematic liquid crystal composition and liquid crystal display utilizing the same

EP 1835009 B1 · Applicant: Dainippon Ink and Chemicals, Incorporated

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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 December 14, 2005 and granted May 25, 2011. A European patent lasts at most 20 years from filing, so its term ended December 14, 2025.
  • 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.
FiledDecember 14, 2005
PublishedSeptember 19, 2007
GrantedMay 25, 2011
Term endedDecember 14, 2025
Application numberEP 05816651
Classification (CPC)C09K19/42 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedDec 14, 2005PublishedSep 19, 2007Patent grantedMay 25, 2011Term endedDec 14, 2025

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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