Patent ID: 7019272

Claim:
A wall mounted type microwave oven comprising: an external enclosure having a bottom closure wall which includes a suction opening and a top vent opening, the enclosure further having a side wall; an oven cavity supported within the external enclosure, the oven cavity having a rearwardly stepped portion to maximize the usable space provided within the oven cavity, the oven cavity having a side wall; an air exhaust path formed between the external enclosure and the oven cavity, the air exhaust path including a bottom plenum, a pair of rear air channels and an upper plenum; at least one blower provided within the external enclosure for drawing air into the bottom plenum through the suction opening and exhausting the air out through a top exhaust opening which forms part of the top vent opening; wherein the rearwardly stepped area divides the space between the oven cavity and the external enclosure into the two rear air channels which receive an exhaust air scream from the blower.