Title:
Air ventilated insole
United States Patent 3225463
US Patent References:
/0311046.html
- - 0311046

/0426495.html
- - 0426495

Shoe ventilating device
- - 2010151

Insole for shoes
- - 2080499

Ventilated shoe
- - 2124391


Inventors:
Burnham, Charles E.
Publication Date:
12/28/1965
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Assignee:
Burnham, Charles E.
Primary Class:
36/3B
Other Classes:
36/3R, 417/478, 36/29, 417/229
International Classes:
A43B7/08; A43B17/08; A43B7/00; A43B17/00
US Patent References:
2239211Ventilated shoe
2474815Air circulating insole
2524764Valve construction
2545062Ventilating insole
2676422Aerator pump for shoes
2954048Pump and valve therefor
3047013Diaphragm for water closets
3060599Ventilated rubber shoe
Foreign References:
DK57400A
FR1024960A
FR1109597A