Running shoe with perforated midsole

Details Running shoe with perforated midsole Running shoe with perforated midsole

1979-02-07

1980-12-09

Kee Chi, James

Boots, shoes, and leggings

Boots and shoes

Occupational or athletic shoe

36 3B, 36 29, A43B 500, A43B 706, A43B 1320

Patent

active

042376270

ABSTRACT:
A running shoe having an outer sole and a midsole. The midsole includes two groups of apertures extending therethrough. The first group of apertures is located in the forefoot portion of the midsole and a second group of apertures is located to the rear of the first group and contiguous with the arch portion of the midsole. The apertures in each group are disposed in an array of transverse rows, with the apertures in the first group being disposed closer to one another than the apertures in the second group.

REFERENCES:
patent: 231830 (1880-08-01), McDonald
patent: 1248873 (1917-12-01), Larson
patent: 2327361 (1943-08-01), Margolin
patent: 2334719 (1943-11-01), Margolin
patent: 2884716 (1959-05-01), Shelare et al.
patent: 4043058 (1977-08-01), Hollister et al.
patent: 4063371 (1977-12-01), Batra

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