Opinion ID: 763547
Heading Depth: 3
Heading Rank: 1

Heading: The Time Frame

Text: 18 The district court concluded that GED's failure to submit evidence showing a noninfringing use by at least one spacer frame manufacturer that was ongoing at the time of the last summary judgment hearing, viewed in light of Simonton's and Louisiana Pacific's earlier change from the noninfringing cartwheel method to the patented linear method, showed that there was no current noninfringing use of the corner keys. See GED I, 929 F.Supp. at 230. The court's time frame should not have been so limited, particularly where Besten had made no showing that changes in the insulated window business that were unrelated to commercial implementation of the patented linear method had caused the previously used noninfringing uses to become unreasonable for all insulated window manufacturers.