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US 4,245,406 AGranted
Athletic shoe
AssigneeBrookfield Athletic Shoe Company, Inc.
InventorsDavid L. Landay, Alvan H. Wolf
Life of this patent
Estimating the term…
Abstract
A shoe and its method of manufacture in which an upper and preformed rubber outsole are joined by a foamed polyurethane, injection-molded midsole. The rubber outsole and polyurethane foam midsole combine to provide a lightweight and flexible shoe compressively conformable to the flexing foot and having strong traction and long wear.
Claims13
A flexible athletic shoe comprising:
- an upper including a lower edge adapted for bonding to polyurethane,
- a flexible rubber outsole conformable to the flexing foot and having an outer surface providing playing court traction,
- a foamed polyurethane, injection molded midsole in situ bonded by said polyurethane to both said outsole and to said upper,
- whereby said rubber outsole and polyurethane foam midsole combine to provide a relatively inexpensive, lightweight and flexible athletic shoe compressively conformable to the flexing foot with a flexible sole having strong court traction and long wear.
1 more element
Dependencies are inferred from the claim text.