Wood v. Kahn
Court of Appeals for the Second Circuit
Appeal from the Circuit Court of the United States for the Southern District of New York. Suit in equity by St. John Wood against Louis Kahn, Moses Kahn, and Sam Levy, doing business as L. & M. Kahn Company, and Philip Ferro and David Barsilay. Decree for defendants, and complainant appeals. Appeal from a decree dismissing the bill of complaint which was based upon letters patent No. 839,356, granted to complainant for a process of dividing diamonds.
1Per curiam
We agree fully with the opinion of Judge Hough that the method of sawing a diamond described and claimed does not involve invention. The fact that the object to be divided is of great value does not change what would otherwise be mechanical skill into invention. It might, as pointed out, require unusual courage for the operator .to risk such a process on so valuable an article, but courage is not patentable.
We deem it unnecessary to add anything to the opinion of the Circuit Court.
The decree is affirmed.
2Cited by20 opinions
- Carey v. DonohueCourt of Appeals for the Sixth Circuit · 1913
- Pugh v. SnodgrassCourt of Appeals for the Sixth Circuit · 1913
- Harmon v. BarberCourt of Appeals for the Sixth Circuit · 1918
- Chicago, D. & G. B. Transit Co. v. MooreCourt of Appeals for the Sixth Circuit · 1919
- Pittsburgh S. S. Co. v. Duluth S. S. Co.Court of Appeals for the Sixth Circuit · 1915
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