Here's the actual wording:

F.R.C.P 65 (d) provides that injunctions and restraining orders shall be "binding only upon the parties to the action, their officers, agents, servants, employees, and attorneys, and upon those persons in active concert or participation with them who receive actual notice of the order by personal service or otherwise." A TRO or preliminary injunction is binding only on those "who receive actual notice of the order by personal service or otherwise." Successors or assigns of persons bound by an injunction may also be bound in proper cases. Golden State Bottling Co., Inc. v. NLRB, 414 U.S. 168, 94 S.Ct. 414, 38 L.Ed.2d 388 (1973).