Shoe uppers

Details Shoe uppers Shoe uppers

1971-10-12

1976-09-28

Van Balen, William J.

Boots, shoes, and leggings

Uppers

260 25AY, 260 25M, 264 41, 264 49, 427373, 427385, 428212, 428305, 428425, 428904, B32B 300, B32B 514

Patent

active

039823350

ABSTRACT:
A shoe upper having in place of the upper leather thereof a fleeceless water vapor permeable microporous sheet of elastomeric polyurethane material having a thickness of about 0.8 - 1.8 mm. and having an extension at break of at least 200%.

REFERENCES:
patent: 3130505 (1964-04-01), Markevitch
patent: 3262805 (1966-07-01), Aoki
patent: 3348963 (1967-10-01), Fukushima
patent: 3409495 (1968-11-01), Rasmussen
patent: 3449153 (1969-06-01), Saligny et al.
patent: 3486968 (1969-12-01), Mater
patent: 3496001 (1970-02-01), Minobe et al.
patent: 3531305 (1970-09-01), Dumbaugh, Jr.
patent: 3729538 (1973-04-01), Cunningham et al.
patent: 3763301 (1973-10-01), Civardi et al.
patent: 3764363 (1973-10-01), Civardi et al.

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