Copyright holders can claim damages for copyright infringements that occurred years or even decades ago, the U.S. Supreme Court has clarified. In a majority decision, the Court rejected the lower court's argument that there's a three-year time limit for damages. Older claims are fair game, as long as the lawsuit is filed within three years of 'discovering' an infringement.

A copy of the Supreme Court Decision, written by Justice Elena Kagan, is available here