Danbury Hatters' Case
Danbury Hatters' Case,decided in 1908 by the U.S. Supreme Court. In 1902 the hatters' union instituted a nationwide boycott of the products of a nonunion hat manufacturer in Danbury, Conn., and the manufacturer brought suit against the union for unlawfully combining to restrain trade in violation of the Sherman Antitrust Act. The Supreme Court held that the union was subject to an injunctioninjunction,
in law, order of a court directing a party to perform a certain act or to refrain from an act or acts. The injunction, which developed as the main remedy in equity, is used especially where money damages would not satisfy a plaintiff's claim, or to protect personal
..... Click the link for more information. and liable for the payment of treble damages. This precedent for federal court interference with labor activities was later modified by statutes.