Liquid crystalline materials and optical displays utilizing same
CA 1266677 C · Owner: Chatfield Co. · Inventors: Ferrato, Joseph Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a new family of Liquid Crystalline Materials for use in optical display devices having the general formula:, The members of the family of materials are characterized by having a broad nematic operating range in conjunction with low viscosity and exhibit fast response times to a controlled electrical field in the lower temperature regions of their nematic operating range and may be mixed with other members of the family or with other liquid crystalline materials and/or homologous non-liquid crystalline materials.
Read the whole patent
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
- Granted March 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2007.
- 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.