BUCKINGHAM PRODUCTS CO. v. McALEER MFG. CO.

No. 7942.

108 F.2d 192 (1939)

BUCKINGHAM PRODUCTS CO. v. McALEER MFG. CO.

Circuit Court of Appeals, Sixth Circuit.

Rehearing Denied January 10, 1940.


Attorney(s) appearing for the Case

Stuart C. Barnes, of Detroit, Mich. (Barnes, Kisselle, Laughlin & Raisch, of Detroit, Mich., on the brief), for appellants.

Clarence B. Zewadski, of Detroit, Mich. (Whittemore, Hulbert & Belknap and Clarence B. Zewadski, all of Detroit, Mich., on the brief), for appellee.

Before HICKS, SIMONS, and ARANT, Circuit Judges.


SIMONS, Circuit Judge.

As in Westinghouse Electric & Manufacturing Company v. Formica Insulation Company, 266 U.S. 342, 45 S.Ct. 117, 69 L.Ed. 316, the question in this case is the operation of the principle of estoppel and the character of defense to which the assignor of a patented invention is limited in a suit for infringement by the assignee, although we are here concerned with a patent...

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