Opinion ID: 409686
Heading Depth: 2
Heading Rank: 1

Heading: The Antitrust Liability

Text: 25 The defendants argue that they could not as a matter of law have conspired to violate Section 1 of the Sherman Act, because they are not sufficiently distinct entities under our decision in Photovest Corp. v. Fotomat Corp., 606 F.2d 704 (7th Cir. 1979), certiorari denied, 445 U.S. 917, 100 S.Ct. 1278, 63 L.Ed.2d 601. They also argue that the evidence was insufficient to prove that Regal entered into a conspiracy with Copperweld as of the sending of their lawyer's February 19, 1973 warning letter to Yoder, and that evidence of Regal's and Copperweld's conduct after that date was improperly admitted. Finally, the defendants argue that the plaintiff's failure to demonstrate harm to competition vitiates the judgment either because no antitrust injury was shown (as required by Brunswick Corp. v. Pueblo Bowl-O-Mat, Inc., 429 U.S. 477, 97 S.Ct. 690, 50 L.Ed.2d 701), or because the appropriate Rule of Reason inquiry was never undertaken.