350 F.3d 623 UNITED STATES GYPSUM COMPANY, Plaintiff-Appellant,v.INDIANA GAS COMPANY, INCORPORATED, and ProLiance Energy LLC, Defendants-Appellees. No. 03-1905. United States Court of Appeals, Seventh Circuit. Argued November 4, 2003. Decided November 24, 2003. COPYRIGHT MATERIAL OMITTED Peter M. King, Canel, Davis & King, Chicago, IL, Todd A. Richardson (argued), Lewis & Kappes, Indianapolis, IN, for […]