Federal Circuit December 1983 casesMothers Restaurant, v. Mama's Pizza, Inc.Raytheon Co. v. Roper Corp.White v. Jeffrey Min. Machinery Co.In re PetersSigma Instruments, Inc. v. United StatesYuba Goldfields, Inc. v. United StatesHilliard v. United States Postal ServiceRohm & Haas Co. v. Crystal Chemical Co.Weston v. U.S. Department of Housing & Urban Development