Summary

Oliver Wendell Holmes, Jr. United States v. Kissel — Opinion of the Court

A conspiracy in restraint of trade is different from and more than a contract in restraint of trade. A conspiracy is constituted by an agreement, it is true, but it is the result of the agreement, rather than the agreement itself, just as a partnership, although constituted by a contract, is not the contract, but is a result of it. The contract is instantaneous, the partnership may endure as one and the same partnership for years. A conspiracy is a partnership in criminal purposes.
Source: Wikisource

Oliver Wendell Holmes, Jr. United States v. Kissel — Opinion of the Court

To be sure, it still might be argued that the general rule that time need not be proved as laid applies to continuing offenses, that therefore the allegation in the indictment, so far as it specifies the time in which the conspiracy was maintained, is immaterial, and that a plea traversing only that is, in substance, a plea in confession and avoidance, and good.
Source: Wikisource

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