Display device and method therefor
CA 2313468 A1 · Owner: Walsh, David · Inventors: Peterson, Francis; Walsh, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electroluminescent display (10) includes thin conductive strips on a phosphordeposited area (20). One aspect of the invention is directed to a device including a dielectric carrier (22) supporting a first conductive bus (12) connecting to first conductors (16) and a second conductive bus (14) connecting to second conductors (18). The first and the second conductors are arranged in close proximity to one another so that a phosphor based carrier , can be located therebetween to permit an electric field set up by voltage applied between the first and the second conductors to generate light via the phosphor. A dielectric layer disposed between the conductors enhances the brightness …
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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 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2020.
- 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.