Legal Opinion

Dunbar v. Myers

Supreme Court of the United States

Decided December 18, 1876No. 123PublishedCited by 146 opinions

Appeal from tbe Circuit Court of tbe United States for tbe Southern District of New York. Tbe facts are fully stated in tbe opinion of tbe court.

1Opinion of the CourtJustice Clieeord

delivered tbe opinion of tbe court.. Inventions, in order that tbe inventors may be entitled to patents for tbe same, must be new and useful; and tbe better opinion is, that tbe improvement must be of sucb a character that it involved invention to make it, as tbe Patent Act confers no right to obtain a patent except to a person who has invented or discovered some new and useful art, machine, manufacture, or composition of matter, or some new and useful improvement in one or tbe other of those described subject-matters.

Sufficient, appears to show that a patent in due form was, granted to John…

2Cases cited8 opinions

  1. Smith v. NicholsSupreme Court of the United States · 1875
  2. Gill v. WellsSupreme Court of the United States · 1874
  3. Prouty and Mears v. RUGGLESSupreme Court of the United States · 1842
  4. Gould v. ReesSupreme Court of the United States · 1872
  5. Vance v. CampbellSupreme Court of the United States · 1862

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3Cited by146 opinions

  1. Topliff v. TopliffSupreme Court of the United States · 1892
  2. Altoona Publix Theatres, Inc. v. American Tri-Ergon Corp.Supreme Court of the United States · 1935
  3. Exhibit Supply Co. v. Ace Patents Corp.Supreme Court of the United States · 1942
  4. Mahn v. HarwoodSupreme Court of the United States · 1884
  5. Sessions v. RomadkaSupreme Court of the United States · 1892

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