267 F.3d 660 (7th Cir. 2001) CAE, INCORPORATED, Plaintiff-Appellee,v.CLEAN AIR ENGINEERING, INCORPORATED, Defendant-Appellant. No. 00-3538 In the United States Court of Appeals For the Seventh Circuit ARGUED MAY 9, 2001DECIDED October 2, 2001 Appeal from the United States District Court for the Northern District of Illinois, Eastern Division. No. 97 C 3264–Warren K. Urbom, Senior […]