LINN, Circuit Judge.
In this patent infringement case, Intirtool, Ltd. ("Intirtool") appeals from the judgment of the United States District Court for the Eastern District of Texas. Intirtool, Ltd. v. Texar Corp., No. 4:00cv118 (E.D.Tex. Mar. 31, 2003). The district court found that Intirtool's United States Patent No. 5,022,253 ("the '253 patent") was invalid for failure to satisfy the written description requirement of 35 U.S.C. § 112, paragraph 1, and...
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