European application, no grantEurope
Ferroelectric liquid crystal screen with opacified electrodes in the non-switchable zone of the screen and methods for obtaining spacers and for treating such screen
EP 0400007 A1 · Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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.
Why it's free to use
- Filed July 20, 1988 and never granted as a European patent. Had it been granted, its 20-year term would have ended July 20, 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 January 20, 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.
FiledJuly 20, 1988
PublishedDecember 5, 1990
GrantedNever granted
Term endedJuly 20, 2008
Application numberEP 88907009
Classification (CPC)G02F1/141 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.