On October 8, 1945, Spencer and the team filed for a patent on the technology. It was approved in January 1950, and Raytheon began manufacturing the commercial microwave oven, called “Radarange.” ...
Under this company, and after decades of research and technological improvement, Raytheon began selling the Amana Radarange. This countertop microwave had a retail price of $495 ($4,700 today ...