High frequency heating apparatus with electric heating device
CA 1253923 A · Owner: Matsushita Electric Industrial Co. Limited · Inventors: Mitsumoto, Yoshio; Akiyoshi, Mitsuo; Hori, Ichiroh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, In a high frequency heating apparatus oven heating and grill cooking can be performed by means of a flat heating element. The arrangement is such that, when high frequency is supplied to the heating chamber with an oven plate therein, abnormal, e.g. local, heating and sparking are avoided. With the oven plate in the heating chamber cooking can be, performed by means of microwave energy or a heater element which can be used alternately or in combination depending on the situation to obtain the best heating condition. The apparatus is simpler and more energy efficient than prior arrangements.
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
- Granted May 9, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 9, 2006.
- 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.