Electro-optical material, method of producing the electro-optical material and a device for modulation of light
CA 2097506 A1 · Owner: Shabanov, Vasily Filippovich · Inventors: Smorgan, Sergei Leonidovich; Shabanov, Vasily Filippovich; Zhuikov, Vladimir Alexandrovich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrooptical material consists of a polymer (1) in which are dispersed drops (2) of a liquid ferroelectric material in which, the planes of smectic layers (4) are essentially parallel to each other. The material is obtained by a method in which according, to the invention, the orientation of molecules of the mixture of polymer with liquid crystal, namely ferroelectric liquid crystal, is effected in a flow.
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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 October 1, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.