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Expired European patentEurope

Reflective type liquid crystal display device

EP 0821261 B1 · Applicant: SHARP KABUSHIKI KAISHA

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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 June 28, 1993 and granted November 14, 2001. A European patent lasts at most 20 years from filing, so its term ended June 28, 2013.
  • 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 December 28, 2018.
  • 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.
FiledJune 28, 1993
PublishedJanuary 28, 1998
GrantedNovember 14, 2001
Term endedJune 28, 2013
Application numberEP 97117741
Classification (CPC)G02F1/13363

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedJune 28, 1993PublishedJan 28, 1998Patent grantedNov 14, 2001Term endedJune 28, 2013

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.