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Expired Canadian patentCanada

Induction heating cooking apparatus with forced air cooling means

CA 1193329 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Hirai, Yukio; Matsumoto, Shinichi; Amagami, Keizo

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Abstract From the Canadian patent

An induction cooking apparatus having a plurality of induction heating coils disposed in an array for inductionheating a metallic heating load by electromagnetic induction. Air inlet ports are formed at the front end of the appliance to admit cooling air for cooling the interior of the cooking appliance and air outlet ports are formed at the rear end of the appliance. The apparatus ensures comfortable cooking without exposing the user to hot exhaust air and also, better, cooling without drawing in hot exhaust air or hot steam from the food materials. Furthermore, a partition is provided within the appliance for separating the power converter unit from the operating unit for blocking …

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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

  • Granted September 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 6, 1982
GrantedSeptember 10, 1985
Term endedSeptember 10, 2002
Patent numberCA 1193329 A
Classification (IPC)H05B6/12

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 6, 1982Patent grantedSep 10, 1985Term endedSep 10, 2002

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.