4,736,312 4/1988 Dassler et al. .
4,763,287 8/1988 Gerhaeuser et al. .
4,771,394 9/1988 Cavanagh .
4,792,665 12/1988 Ruhlemann .
4,814,661 3/1989 Ratzlaffetal 310/328
4,848,009 7/1989 Rodgers 36/137
4,876,500 10/1989 Wu .
4,891,797 1/1990 Woodfalks 368/10
4,956,628 9/1990 Furlong .
5,033,013 7/1991 Kato .
5,052,131 10/1991 Benbiri 36/137
5,125,647 6/1992 Smith .
FOREIGN PATENT DOCUMENTS
WO8804768 6/1988 World Int. Prop. O. .
Primary Examiner—Vit W. Miska
[57] ABSTRACT
An athletic shoe which includes a timing device for measuring the amount of time the athletic shoe is off the ground and in air. The athletic shoe can also include a notification device which can be operatively coupled to the timing device for notifying a wearer of the athletic shoe of a message. The message can include information related to the amount of time the athletic shoe is off the ground and in the air.
23 Claims, 3 Drawing Sheets