Vulcanized composite sole for footwear
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United States of America Patent
Stats
-
Jun 30, 1987
Issued Date -
N/A
app pub date -
Apr 23, 1986
filing date -
Jun 10, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lightweight, flexible, resilient sole adapted for athletic footwear including a relatively soft midsole made of a synthetic such as ethylene vinyl acetate, the midsole being wedge-shaped and including a relatively thick heel section and a relatively thin and flexible forepart section, and a plurality of discontinuous independent outsole pieces made of a relatively hard and wear-resistant synthetic rubber, such as styrene-butadiene rubber, the outsole pieces being disposed across the forepart section of the midsole with open spaces between the outsole pieces to maintain the flexibility of the forepart section, with the outsole pieces being vulcanized to the lower surface of the midsole to form a composite sole.
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