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start of the microwave
The microwave oven was developed after W.W.II in order to beat swords into plowshares.
www.microwaves101.com/encyclopedias/history-of-the-microwave-oven -
filed patent
Spencer's original US patent 2,495,429, Method of Treating Foodstuffs, was filed.
www.microwaves101.com/encyclopedias/history-of-the-microwave-oven -
first microwave build
Raytheon demonstrated the world's first microwave oven and called it a "Radarange," the winning name in an employee contest. Housed in refrigerator-sized cabinets, the first microwave ovens cost between $2,000 and $3,000.
http://www.smecc.org/microwave_oven.htm -
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introduced first home model
Tappan introduced the first home model priced at $1295. In 1965 Raytheon acquired Amana Refrigeration. Two years later, the first countertop, domestic oven was introduced. It was a 100-volt microwave oven, which cost just under $500 and was smaller, safer and more reliable than previous models. -
commercial microwave
The Raytheon Corporation produced the first commercial microwave oven it was called the 1161 Radarange. It was large, expensive, and had a power of 1600 watts 5 1/2 feet tall, weighing over 750 pounds, and costing about $5000 each. The magnetron tube had to be water-cooled, so plumbing
http://www.smecc.org/microwave_oven.htm
installations were also required -
demestic microwave
The first domestic microwave oven was produced by Amana (a division of Raytheon).
www.microwaves101.com/encyclopedias/history-of-the-microwave-oven -
price decreasing
the price of countertop units began to decrease and their capabilities were expanded
http://www.smecc.org/microwave_oven.htm -
widley known
the microwave oven became a more commonly owned kitchen appliance than the dishwasher, reaching nearly 60%, or about 52 million U.S. households. America's cooking habits were being drastically changed by the time and energy-saving convenience of the microwave oven. Once considered a luxury, the microwave oven had developed into a practical necessity for a fast-paced world
http://www.smecc.org/microwave_oven.htm -
90% of people had one
ninety per cent of all US homes had such an appliance
http://www.smecc.org/microwave_oven.htm
