Electroluminescent laminate with patterned phosphor structure and thick film dielectric with improved dielectric properties
CA 2371760 C · Owner: Carkner, Donald Edward · Inventors: Wu, Xingwei; Kupsky, George A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved dielectric layer for use in an EL laminate including a pressed, sintered , ceramic material having compared to an unpressed, sintered dielectric layer of the same , composition, improved dielectric strength reduced porosity and uniform , luminosity in an EL laminate. Also provided is a method of forming a thick film dielectric layer in an EL , laminate by depositing a ceramic material in one or more layers by a thick film technique to , form a dielectric layer having a thickness of 10 to 300 µm; pressing the dielectric layer to , form a densified layer with reduced porosity and surface roughness; and sintering the , dielectric layer to form a pressed sintered dielectric …
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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 May 12, 2000 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.