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GENERAL ELECTRIC CO. v. DE FOREST RADIO CO.

Nos. 589, 598.

23 F.2d 698 (1928)

GENERAL ELECTRIC CO. v. DE FOREST RADIO CO. (two cases).

District Court, D. Delaware.

January 3, 1928.

Attorney(s) appearing for the Case

Albert G. Davis, of Schenectady, N. Y., Hubert Howson, of New York City, and William G. Mahaffy, of Wilmington, Del., for plaintiff.

Samuel E. Darby, Jr., Carl A. Richmond, and William R. Ballard, all of New York City, Thomas G. Haight, of Jersey City, N. J., and E. Ennalls Berl (of Ward & Gray), of Wilmington, Del., for defendant.

MORRIS, District Judge.

These two suits, of General Electric Company against De Forest Radio Company, were tried together. In the first suit all the claims of patent No. 1,558,436, granted to Irving Langmuir, assignor to the plaintiff, October 20, 1925, for "electrical discharge apparatus and process of preparing and using the same," upon an application filed October 16, 1913, and renewed March 14, 1916, are in issue. It is known as the high-vacuum tube patent. Infringement...

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