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Canadian application, no grantCanada

A liquid crystal display device

CA 2440466 A1 · Owner: Takeuchi, Shu · Inventors: Takeuchi, Shu

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The object of the invention is to provide a liquid crystal display device which can surely prevent a sealant from flowing into a display area. A liquid crystal display device comprising: two substrates (10 20) in which a display , area (11) is defined and which are overlaid with each other; at least two dam pattern structures (13d, 13d') being provided on at least one of the substrates or provided separately on both of the substrates which have a , pattern of surrounding the display area (11); and a sealant (12) applied to the outside of the dam pattern structures in a form of surrounding the dam pattern structures. The outer dam pattern structure (13d') adjacent to the sealant (12) …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 2002
GrantedNo grant recorded
Term endedFebruary 28, 2022
Patent numberCA 2440466 A1
Classification (IPC)G02F1/13

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 28, 2002Term endedFeb 28, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.