DuMont sold his television manufacturing division to Emerson Radio in 1958, and sold the remainder of the company to Fairchild Camera in 1960.
His research laboratory became part of Fairchild Camera and Instrument and later developed semiconductor integrated circuits.
In 1979, Fairchild Camera and Instrument was purchased by Schlumberger Limited, an oil field services company, for $425 million.
Then he became Director of Basic Research at Fairchild Camera and Instrument Corporation.
He worked as a researcher at Bell Labs and then as a general manager at the Fairchild Camera and Instrument Corporation.
Two years earlier Schlumberger had bought Fairchild Camera and Instrument Corporation of early semiconductor fame (but not performing wonderfully at the moment) for $425 million.
He later held executive posts with Fairchild Camera and Instrument and the Hamilton-Standard division of United Aircraft.
He remained at Bell Labs for 18 years before joining Fairchild Camera and Instrument in Palo Alto.
In 1979, Fairchild Camera and Instrument (including Fairchild Semiconductor) became a subsidiary of Schlumberger.
Her father, who is retired, was an aerospace engineer for Fairchild Camera and Instrument in Syosset, L.I.