Dalton v. Jennings
Supreme Court of the United States
Appeal from the Circuit Court of the United States for the Southern District of New York. This was a bill filed for an account, 'and for an injunction restraining the defendant from infringing Dalton’s letters patent. Upon the final hearing of the cause'the court below dismissed the bill, and Dalton appealed here.
1Opinion of the CourtJustice Miller
On the fifth day of March, 1872, there was issued to the complainant below, and appellant here, John Dalton, a patent, No. 124,840, for a new and useful improvement in ladies’ hairnets, in which he claims as new “ a head or hair net composed of a main set of meshes fabricated of coarse thread, combined with an auxiliary set or sets of meshes fabricated of fine thread, substantially as described.” In his specification, he says that the nets in use before his invention were composed of coarse threads so far apart that the meshes or interstices were too large and permitted the hair to protrude…
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