Title:
Inflatable sole and heel structure with replaceable tread portions
United States Patent 3044190
US Patent References:
/0836364.html
- - 0836364

/1010187.html
- - 1010187

/1109130.html
- - 1109130

/1148376.html
- - 1148376

Sole-tap for boots and shoes
- - 1382180


Inventors:
Urban, Urbany
Publication Date:
07/17/1962
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Assignee:
Urban, Urbany
Primary Class:
36/29
Other Classes:
36/32R, 36/35R
International Classes:
A43B13/20; A43B13/18
US Patent References:
1407506Cushion heel
1449498Cushion heel
1500583Pneumatic sole
1568405Pneumatic footwear construction
1942883Pneumatic shoe
2109180Shoe construction
2156342Cushion heel
2464251Rubber heel
2536539Resilient heel
2917840Heel and base assembly