Heating box for a microwave oven
CA 1306508 C · Owner: Tanaka, Yuji · Inventors: Tanaka, Yuji; Ono, Tetsuji; Nakagawa, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heating box has an interior exposed to microwave. The heating box includes a first metal panel and a second metal panel. The first panel has a join portion. The second panel has a join portion which opposes and contacts the join portion of the first panel. The first panel and the second panel are bonded together at the join portions thereof. A plurality of electrical connections between the first and second panels extend in the join portions of the first and second panels. The electrical connections are spaced.
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 August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
- 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.