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GENERAL MOTORS CORPORATION v. COE

No. 7647.

120 F.2d 736 (1941)

GENERAL MOTORS CORPORATION v. COE, Com'r of Patents.

United States Court of Appeals for the District of Columbia.

Decided June 16, 1941.

Attorney(s) appearing for the Case

Frank E. Liverance, Jr., of Grand Rapids, Mich. (John Boyle, Jr., of Washington, D. C., on the brief), for appellant.

Mark Taylor, of Washington, D. C. (W. W. Cochran, of Washington, D. C., on the brief), for appellee.

Before GRONER, Chief Justice, and EDGERTON and RUTLEDGE, Associate Justices.

EDGERTON, Associate Justice.

This is a suit1 to obtain a patent on "resonance units" for muffling the noises from the induction and exhaust systems of automobile engines. The application was made by Ernest E. Wilson in 1930. The device consists of a duct with one or more communicating branches or chambers proportioned or "tuned" to preselected sound waves passing through the duct so as to attenuate those which are objectionably loud. The...

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