BELDEN v. AIR CONTROL PRODUCTS

Civ. A. No. 2302.

144 F.Supp. 248 (1956)

Donald A. BELDEN, Arthur E. Swoboda, Joseph A. Bartole, Merlin C. Belden, Delbert B. Belden d/b/a Louver Manufacturing & Supply Company, Plaintiffs, v. AIR CONTROL PRODUCTS, Inc., Defendant.

United States District Court W. D. Michigan, S. D.

August 24, 1956.


Attorney(s) appearing for the Case

Oscar W. Giese, Washington, D. C., and Peter P. Price, Grand Rapids, Mich., for plaintiffs.

Earl & Webb, Otis A. Earl and Austin A. Webb, Kalamazoo, Mich., and Varnum, Riddering, Wierengo & Christenson and Carl J. Riddering, Grand Rapids, Mich., for defendant.


STARR, Chief Judge.

The plaintiffs as assignees and owners of United States Letters Patent No. 2,458,134 issued January 4, 1949, for an adjustable ventilator, filed complaint alleging infringement by the defendant, a Michigan corporation. They asked for an injunction against further infringement and for damages and costs of suit. The defendant answered, alleging invalidity of patent because of prior art anticipation and lack of invention, and denying infringement...

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