DURO-LAST, INC., Plaintiff-Cross Appellant, v. CUSTOM SEAL, INC., Defendant-Appellant. Nos. 02-1218, 02-1262.United States Court of Appeals, Federal Circuit. February 28, 2003. Appeal from The United States District Court for the Eastern District of Michigan, Robert H. Cleland, J. Page 1099 [EDITORS’ NOTE: THIS PAGE CONTAINS HEADNOTES. HEADNOTES ARE NOT AN OFFICIAL PRODUCT OF THE COURT, […]