Electroluminescent light source and method of making same
CA 2298774 C · Owner: Trotter International · Inventors: Polyan, Ruben
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electroluminescent light source has a core member and a pair of transparent band structures between which the core member is sandwiched and which in an assembled state form a transparent sheath. The core is formed by a plurality of elongated electrodes (14) spaced from each other and interconnected by means of connecting bodies of a dielectric material (26). Spaces (28) between the electrodes are filled with an electroluminescent material which is applied in the form of a film onto the connecting bodies. The entire system of electrodes is placed between a pair of electroconductive buses (20) to which the electrodes are connected electrically and which support the system of …
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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 August 11, 1997 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2019.
- 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.