Addyston Pipe & Steel Co. v. United States
| Addyston Pipe and Steel Co. v. U.S. | |
|---|---|
| Argued April 26–27, 1899 Decided December 4, 1899 | |
| Full case name | Addyston Pipe and Steel Company et al., Appts., v. United States |
| Citations | 175 U.S. 211 (more) 20 S. Ct. 96; 44 L. Ed. 136; 1899 U.S. LEXIS 1559 |
| Holding | |
| Upheld the rule of reason doctrine regarding U.S. antitrust laws. | |
| Court membership | |
| |
| Case opinion | |
| Majority | Peckham, joined by unanimous |
| Laws applied | |
| U.S. Const. amends. I, XIV; Sherman Antitrust Act of 1890 | |
Addyston Pipe and Steel Co. v. United States, 175 U.S. 211 (1899), was a United States Supreme Court case in which the Court held that for a restraint of trade to be lawful, it must be ancillary to the main purpose of a lawful contract. A naked restraint on trade is unlawful; it is not a defense that the restraint is reasonable.