National Conduit & Cable Co. v. John A. Roebling's Sons Co.
Court of Appeals for the Second Circuit
Appeal .from the. Circuit Court of the United States for the Southern District óf New York. This cause comes here upon appeal from a decree dismissing a bill for infringement of U. S. patent No. 304,539, issued September 2, 1884, to Edwin D. McCracken for an electric conductor. No opinion was delivered in the Circuit Court.
1Per curiam
The patentee states in his specification that he has invented a new and useful improvement in electrical conductors. That for all insulated electric conductors or wires it is desirable that the covering of insulating material should be as thin as is consistent with a perfect insulation. “I have,” says the patentee, “discovered that thin manila or other pure vegetable paper possesses in a high degree the qualities necessary for a perfect insulation, • and that by its use can be obtained a perfect insulation with a less thickness of covering than is possible in any other way. The invention…
2Cases cited1 opinion
- Victor Talking Mach. Co. v. American Graphophone Co.Court of Appeals for the Second Circuit · 1907
3Cited by1 opinion
- Harvey Hubbell, Inc. v. General Electric Co.Court of Appeals for the Second Circuit · 1920