Microphase stabilized ferroelectric liquid crystals
CA 2316271 A1 · Owner: Massachusetts Institute Of Technology · Inventors: Thomas, Edwin L.; Ober, Christopher K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microphase stabilized ferroelectric liquid crystal (MSFLC) and optical device prepared therefrom are provided. The MSFLC includes a block copolymer comprising at least one non-liquid crystal polymer block and at least one liquid crystalline polymer block including a chiral mesogenic side group the , block copolymer comprising domains of the non-liquid crystalline block of the non-liquid crystalline polymer and domains of chiral mesogenic polymer such that the domains form an inverted cylinder morphology. The volume percent and block size of the chiral mesogenic group are selected such that the spacings between cylinders is sufficient to permit switching of the chiral mesogenic …
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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 December 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2020.
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Timeline
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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.