All States Plastic Manufacturing Co., Inc., an Illinois Corporation v. Weckesser Company, Inc., an Illinois Corporation

Plaintiff All States Plastic Manufacturing Co., Inc. brought suit for infringement of Eberhardt Patent No. 3,484,905. Plaintiff was and is the assignee of all right, title and interest in this patent. Defendant Weckesser Company, Inc., answered by denying infringement and counterclaimed, seeking a declaration that the Eberhardt patent claims are invalid. The district court found for the defendant as to infringement and as to invalidity. We affirm the finding of invalidity and therefore need not consider the infringement issues.

The suit patent discloses a flexible plastic bundle tie of…