Title:
Footwear with provision to change the air therein
United States Patent 2720041
US Patent References:
/0819449.html
- - 0819449

/0904891.html
- - 0904891

/0964482.html
- - 0964482

/1144188.html
- - 1144188

Shoe
- - 1380879


Inventors:
Kalman, Kajtar
Publication Date:
10/11/1955
View Patent Images:
Download PDF 2720041 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Kalman, Kajtar
Primary Class:
36/3B
International Classes:
A43B7/06; A43B7/00
US Patent References:
1870114Shoe ventilating device
1932557Footwear with elastic, flexible, and aerated soles embodying rubber sponge
2239211Ventilated shoe
2457944Ventilated shoe
2558973Ventilated shoe