Midsole including cushioning structure

Boots – shoes – and leggings – Soles – Cushion

Reexamination Certificate

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Details

C036S031000, C036S03500R, C036S037000

Reexamination Certificate

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11443532

ABSTRACT:
A midsole includes a thick plate-shaped or column-shaped cushioning portion. A plurality of grooves is formed on an outer peripheral surface of the cushioning portion. The respective grooves are helically formed around a substantially vertical line. The respective grooves are arranged substantially parallel with each other. A range α in which each of the grooves is formed is larger than a range of 15 degrees around the axial line and is smaller than a range of 180 degrees around the axial line.

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