Heat cooking device allowing control of fan rotation number
CA 2311570 A1 · Owner: Fukuda, Takashi · Inventors: Fukuda, Yoshihito; Fukuda, Takashi; Murata, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
When a hood fan of a microwave oven installed at a high place operates, the air below the microwave oven is guided to a prescribed direction. Namely, the microwave oven may be used as a ventilation fan. When manner of setting of the hood fan is changed the direction of an air, outlet of the fan can be changed. When the hood fan exhausts air to the room; the number of rotation of the hood fan is made lower than when the air is exhausted outside the room.
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 June 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 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.