If you will remember, the APEX permanently installed dishwasher was a machine that was designed and manufactured by a small firm that was purchased by APEX.
Here is something I posted long ago:
Post# 505362 on 2011-03-20 11:33:51 by Tomturbomatic
I still wonder why it is shaped so differently from the free standing model. Seems like it would have been easy to put that on casters. It would have been heavier than this Fiberglas construction, but finding 36 inches of wall space in most kitchens is not easy.
As for what happened to APEX dishwashers, it was posted in an earlier thread that APEX bought the dishwasher from a small manufacturing concern, they did not design it. I would guess that when the design became outdated (like that round porcelain tank in a square cabinet which took away usable space for dishes), they did not have the resources to redesign the machine and just stopped production. It is interesting how much work they were doing with Fiberglas: this portable and the tubs for their washers. 1957 was the last year of production for their washers. The last listing I can find for the company is:
Apex Rotarex Corp.
Div of White Sewing Machine Co.
Cleveland, OH
Also:
Another dishwasher factoid I found is that in 1949, Dish-A-Matic was purchased by APEX. From page 4 of the June 15th, 1949 issue of Electrical Merchandising:
The Apex Electrical Mfg. Co., Cleveland, has purchased all of the capital stock of Lake State Products, Inc., Jackson, Michigan, producers of the Dish-A-Matic electric dishwasher and the Cinderella portable clothes washer.
C.G. Frantz, president of Apex, said the acquisition of the Dish-A-Matic firm represented an initial investment of close to $500,000.
Mr. Frantz said the modern, efficient Lake State Products plant at Jackson will be kept in operation as a wholly owned subsidiary of Apex. The Lake State plant, he said, has a capacity of 50,000 automatic dishwashers per year and production will be geared to expected requirements as rapidly as possible.