Ball v. Langles,
102 U.S. 128 (1880)

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U.S. Supreme Court

Ball v. Langles, 102 U.S. 128 (1880)

Ball v. Langles

102 U.S. 128


1. Reissued letters patent No. 4026, granted June 14, 1870, to Hosea Ball for a new and useful improvement in ovens, are void inasmuch as they contain new matter, and are for an invention different from that exhibited in the original specification and drawings.

2. The ruling in Seymour v. Osborne, 11 Wall. 516, and Russell v. Dodge, 93 U. S. 460, touching the authority of the Commissioner of Patents in granting a reissue of letters patent reaffirmed.

The facts are stated in the opinion of the Court.

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