Summary

Joseph P. Bradley Leggett v. Avery — Opinion of the Court

One of the defences made by the defendants was, that the last reissue embraced certain claims for alleged inventions, which had been expressly disclaimed by the patentee as a condition of getting the letters extended, and which are the specific claims which the defendants are charged with infringing. The fact on which the defence is based seems to be well founded.
Source: Wikisource

Joseph P. Bradley Leggett v. Avery — Opinion of the Court

The combination, substantially as described, with the two plow-beams A A, of the handles F F, and adjustable handle-supporting braces E E.' It is obvious, on inspection, that the first and second of these claims are for substantially the same inventions which were disclaimed before the extension, and are for different inventions from that which was included in and secured by the letters-patent as extended. The court below deemed this, amongst other things, a fatal objection to the validity of the reissued letters-patent. We agree with the Circuit Court.
Source: Wikisource

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