Inner sole adjustable in weight

Details Inner sole adjustable in weight Inner sole adjustable in weight

2003-08-07

2008-03-04

Kavanaugh, Ted (Department: 3728)

Boots, shoes, and leggings

Boots and shoes

Occupational or athletic shoe

C482S079000, C036S043000, C036S00300B

Reexamination Certificate

active

07337562

ABSTRACT:
A footwear insole that is put into a footwear when used includes an insole body put in the footwear, and a load-applying part installed on a rear portion of the insole body to apply load to a user wearing the footwear with the insole body. When the user uses the footwear insole of the present invention, since the weight of the footwear is increased, the user can obtain an effect similar to a case that he/she wears a sandbag or a lead jacket, thereby increasing the burning of calories and exercise effect.

REFERENCES:
patent: 3785646 (1974-01-01), Ruskin
patent: 4430810 (1984-02-01), Bente
patent: 6397498 (2002-06-01), Yoo
patent: 6502331 (2003-01-01), Hines
patent: 6742288 (2004-06-01), Choi
patent: 6807753 (2004-10-01), Steszyn et al.
patent: 2000-270903 (2000-10-01), None
patent: 20-0285242 (2002-07-01), None
patent: 2002-0057917 (2002-07-01), None

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