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European application, no grantEurope

Liquid crystal device

EP 1091237 A1 · Applicant: Hewlett-Packard Company

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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 October 5, 1999 and never granted as a European patent. Had it been granted, its 20-year term would have ended October 5, 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 April 5, 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.
FiledOctober 5, 1999
PublishedApril 11, 2001
GrantedNever granted
Term endedOctober 5, 2019
Application numberEP 99307840
Classification (CPC)G02F1/133753

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedOct 5, 1999PublishedApril 11, 2001Term endedOct 5, 2019

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