Summary

Bushrod Washington Keplinger v. De Young — Opinion of the Court

The contract, taken in connexion with the whole of the evidence stated in the bill of exceptions, if the same were believed by the jury, formed most certainly a strong case against the defendant, sufficient to have warranted the jury in inferring either that the machine which was to be employed in the manufacture of the watch-chains was owned in whole or in part by the defendant, or that it was hired to the defendant for six months, under colour of a sale of the articles which might be manufactured with it, and with intent to invade the plaintiff's patent right.
Source: Wikisource

Bushrod Washington Keplinger v. De Young — Opinion of the Court

Such a construction would be highly inconvenient and unjust to the rest of the community, since it might subject any man who might innocently contract with a manufacturer to purchase all the articles which he might be able to make within a limited period, to the heavy penalty inflicted by the act, although he might have been ignorant of the plaintiff's patent, or that a violation of it would be the necessary consequence of the contract.
Source: Wikisource

Bushrod Washington Keplinger v. De Young — Opinion of the Court

And the said De Young, on his part, doth hereby promise to receive from the said Hatch & Kirkner, such quantity of watch-chains answering the description of the sample, as it may be in their power to manufacture, not exceeding five gross per week, reserving to himself the privilege of directing what proportion thereof shall be four, six, or eight strands, and pay for the same weekly in the following manner, viz.
Source: Wikisource

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