Duro Test Corporation v. Welsbach Street Lighting Co., 1108.

Decision Date12 October 1937
Docket NumberNo. 1108.,1108.
PartiesDURO TEST CORPORATION v. WELSBACH STREET LIGHTING CO. OF AMERICA et al.
CourtU.S. District Court — District of Delaware

E. Ennalls Berl (of Ward & Gray), all of Wilmington, Del., and Samuel E. Darby, Jr. (of Darby & Darby), all of New York City, for plaintiff.

Hugh M. Morris and Alexander L. Nichols, both of Wilmington, Del., for defendants.

NIELDS, District Judge.

This is a motion to dismiss a bill of complaint which is based on the Declaratory Judgment Act. Judicial Code § 274d (28 U.S.C.A. § 400).

The grounds assigned are (1) that the bill of complaint does not state facts sufficient to constitute a cause of action in this proceeding; (2) no actual controversy exists between the parties; and (3) American Development Company, a defendant, is an indispensable party and has not been served with process nor voluntarily appeared.

In the bill of complaint plaintiff alleges that an actual controversy exists between plaintiff and defendants, in that defendants jointly and severally are representing to purchasers and prospective purchasers of lamps manufactured by plaintiff, and sold or offered for sale, that plaintiff's lamps infringe defendants' patent rights, including five patents specifically identified in the bill; that purchasers of plaintiff's lamps would infringe defendants' patent rights, and would be sued for infringement; that, by reason of such representations, defendants have induced prospective customers who were prepared and willing to purchase plaintiff's product to refrain from doing so. The bill further avers that the lamps made and sold by plaintiff do not embody the inventions of any of defendants' patents including the patents identified in the bill; that defendants' patents, in so far as they are material to the lamps manufactured by plaintiff, are void upon many grounds, including complete anticipation and want of patentable invention. In the bill plaintiff prays for a declaratory judgment adjudging that the patents of defendants and each of them are invalid and that the lamps manufactured and sold or offered for sale by plaintiff do not infringe patent rights of defendants.

The foregoing allegations of the bill of complaint state a cause of action under the Declaratory Judgment Act. Zenie Bros. v. Miskind (D.C.) 10 F.Supp. 779.

Defendants have specifically charged that plaintiff's product infringes defendants' patents and plaintiff alleges that defendants' patents for various reasons are...

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  • Aralac, Inc. v. Hat Corporation of America
    • United States
    • U.S. Court of Appeals — Third Circuit
    • 10 Febrero 1948
    ...Oil Tools, supra. Notice to plaintiff's customers is sufficient. Treemond Co. v. Schering Corp., supra; Duro Test Corp. v. Welsbach Street Lighting Co., D. C.Del., 21 F.Supp. 260; B. F. Goodrich Co. v. American Lakes Paper Co., D.C.Del., 23 F.Supp. 682; Tinius Olsen Testing Machine Co. v. B......
  • Lockwood, In re
    • United States
    • U.S. Court of Appeals — Federal Circuit
    • 11 Enero 1995
    ...Co., 102 F.2d 105, 41 USPQ 342 (6th Cir.1939); Derman v. Gersten, 22 F.Supp. 877 (E.D.N.Y.1938); Duro Test Corp. v. Welsbach Street Lighting Co. of Am., 21 F.Supp. 260 (D.Del.1937); Petersime Incubator Co. v. Bundy Incubator Co., 34 USPQ 251 (S.D.Ohio 1937); Cromwell Novelty Corp. v. Carp, ......
  • Treemond Co. v. Schering Corporation
    • United States
    • U.S. Court of Appeals — Third Circuit
    • 3 Septiembre 1941
    ...Corp. v. Hanson-Van Winkle-Munning Co., 4 Cir., 104 F.2d 856; Zenie Bros. v. Miskend, D.C., 10 F.Supp. 779. 16 Duro Test Corp. v. Welsbach St. Lighting Co., D.C., 21 F.Supp. 260; B. F. Goodrich Co. v. American Lakes Paper Co., D.C., 23 F.Supp. 682. In Tinius Olsen Testing Mach. Co. v. Baldw......
  • Leach v. Ross Heater & Mfg. Co.
    • United States
    • U.S. Court of Appeals — Second Circuit
    • 24 Abril 1939
    ...& Co. v. Triple-A Specialty Co., 7 Cir., 88 F.2d 852; Zenie v. Miskend, D.C., 10 F.Supp. 779; Duro Test Corporation v. Welsbach Street Lighting Co. of America, D.C., 21 F.Supp. 260; Derman v. Gersten, D.C., 22 F.Supp. 877; Silvray Lighting, Inc. v. Versen, D.C., 25 F.Supp. 223. See, also, 4......
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