Athletic shoe with pressurized ankle collar
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United States of America Patent
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Jun 16, 1998
Issued Date -
N/A
app pub date -
Mar 12, 1993
filing date -
Mar 17, 1989
priority date (Note) -
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Abstract
An athletic shoe formed of a sole, an upper attached to the sole and including an ankle portion extending around the medial and lateral malleoli, and an inflatable bladder attached within the ankle portion. The inflatable bladder has a medial section and a lateral section, with an inlet mechanism for supplying pressurized gas to the interior of the bladder. Weld lines divide the medial and lateral sections into upper and lower portions and prevent the formation of restrictive vertical columns of pressurized gas in the medial and lateral sections.
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