Moisture insensitive electroluminescent phosphor
CA 2305033 A1 · Owner: Klinedinst, Keith A. · Inventors: Klinedinst, Keith A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A phosphor particle has thereon a moisture resistant treatment of a metallic nitride. By, moisture resistant is meant a condition allowing the phosphor particle to function in a, humid atmosphere for a significantly longer period of time than an untreated particle. The method of making such phosphors comprises the steps of introducing an inert gas, into a reaction vessel; charging phosphor particles into the reaction vessel; heating the, reaction vessel to a reaction temperature. introducing a first precursor compound such as, triiosbutyl aluminum and a second precursor compound such as dimetylamine into a, second reaction vessel to form a nitride precursor. The nitride precursor is …
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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 April 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 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.
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.