Illuminated assembly for a switch/outlet
CA 2252831 A1 · Owner: Appelberg, Gustaf T. · Inventors: Appelberg, Gustaf T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An illuminating apparatus for a wall switch (20) or outlet (2) that has a pair of terminals (4, 5) across which an electric potential is available including , an electroluminescent lamp plate (17) having first and second electrode deposits (14, 15) on a surface thereof and a contact plate (12) disposed , between the wall switch (20) or outlet (2) and the electroluminescent lamp plate (17) and a back surface facing the switch (20) or outlet (2) the , contact plate (12) having first and second conductors (3 6), each of which , pass through the contact plate (12) and one of the terminals (5) and the , second conductor (6) contacting the second electrode deposit (15) and the other of the …
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
- Filed April 15, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 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.