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Expired European patentEurope

Liquid crystal display device

EP 0321073 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 September 30, 1988 and granted January 26, 1994. A European patent lasts at most 20 years from filing, so its term ended September 30, 2008.
  • 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 30, 2014.
  • 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 30, 1988
PublishedJune 21, 1989
GrantedJanuary 26, 1994
Term endedSeptember 30, 2008
Application numberEP 88309129
Classification (CPC)G02F1/13624

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedSep 30, 1988PublishedJune 21, 1989Patent grantedJan 26, 1994Term endedSep 30, 2008

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.