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Expired European patentEurope

Liquid crystal panel

EP 1182494 B1 · Applicant: Citizen Watch Co. Ltd.

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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 November 11, 1999 and granted October 26, 2005. A European patent lasts at most 20 years from filing, so its term ended November 11, 2019.
  • 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 May 11, 2025.
  • 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 11, 1999
PublishedFebruary 27, 2002
GrantedOctober 26, 2005
Term endedNovember 11, 2019
Application numberEP 99973796
Classification (CPC)G02F1/134327

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedNov 11, 1999PublishedFeb 27, 2002Patent grantedOct 26, 2005Term endedNov 11, 2019

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.