Complaint for Declaratory Judgement
Civil Action No. 1:12-cv-09908; no judge yet assigned.
Filed on Dec. 12, 2012 in the U.S. District Court for the Northern District of Illinois;

Patents in case

• D451566: “Batting practice tee” by De Chenne. Prosecuted by Olson and Olson.. Filed 3/5/2001 & Granted 12/4/2001.