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Expired European patentEurope

Optical compensation layer-carrying polarizing plate, liquid crystal panel, liquid crystal display unit, image display unit and production method of optical compensation layer-carrying polarizing plate

EP 1816496 B1 · Applicant: NITTO DENKO 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 November 16, 2005 and granted January 11, 2012. A European patent lasts at most 20 years from filing, so its term ended November 16, 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.
FiledNovember 16, 2005
PublishedAugust 8, 2007
GrantedJanuary 11, 2012
Term endedNovember 16, 2025
Application numberEP 05807038
Classification (CPC)G02B5/3033 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedNov 16, 2005PublishedAug 8, 2007Patent grantedJan 11, 2012Term endedNov 16, 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

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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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