Zenith had sued Hazeltine for a declaration of misuse and treble antitrust damages.

It was therefore necessary for the Court to determine whether coercive total–sales royalties was not only misuse but a basis for antitrust damages as well.

The Court ruled that for Hazeltine to be liable for antitrust treble damages, the other requirements of such an action must be met—such as sufficient anti-competitive impact.

In Zenith Radio Corp. v. Hazeltine Research, Inc.,[4] the Supreme Court reversed the Seventh Circuit's remand decision in the preceding 1969 case.

[5] In establishing precedent, the Court held that Zenith was still entitled to damages for the lasting and future effects of conspiratorial conduct, even if the statute of limitations were not tolled.