Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Art
    Black's Law Dictionary: 2nd Edition

    A principle put in practice and applied to seme art, machine, manufacture or composition of matter. Earle v. Sawyer, 4 Mason, 1, Fed. Cas. No. 4,247. See Act Cong. July 8, 1870. In the law of patents, this term means a useful art or manufacture which is bsneficiai and which is described with exactness In its mode of operation. Such an art can be protected only in the mode and to the extent thus described. Smith v. Downing, 22 Fed. Cas. 511; Carnegie Steel Co. v. Cambria Iron Co. (C. Ct) 89 Fed. 754; Jacobs v. Baker, 7 Wall. 297, 19 L. Ed. 200; Corning v. Burden, 15 How. 267, 14 L. Ed. 683.