Lighting device for microwave oven
CA 2197392 A1 · Owner: Hong, Seok-Weon · Inventors: Kim, Kwang-Ho; Hong, Seok-Weon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a method of a lighting device for a microwave oven having a cooking chamber for cooking a food by using microwave energy, and a magnetron oscillator producing microwave frequencies to heat the food including a hole formed, on the upper surface of the cooking chamber and a lamp for illuminating the cooking chamber through the hole. The above lamp includes a filament and a bulb, and the filament is located 2mm above the upper surface. The hole, which is less than 19mm in diameter, is formed 2/14 of the upper surface's depth from the front of the upper surface. The upper surface includes a beveled portion that slopes downward towards the front of the microwave oven on which …
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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 February 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.