05572805 is referenced by 84 patents and cites 43 patents.

A composite shoe bottom is disclosed comprising a lower layer of firm material and an upper softer layer superposed thereon. Each layer has an upper contoured surface such that the total compressibility of the shoe bottom, as determined by the relative thicknesses of the layers, is predetermined and differs along the surface. The upper layer has an uppermost surface which is shaped to fit against and be complemental to the bottom of the foot of a wearer.

Title
Multi-density shoe sole
Application Number
871017
Publication Number
5572805
Application Date
November 1, 1994
Publication Date
November 12, 1996
Inventor
Roger J Brown
Aspen
CO, US
Erik O Giese
Aspen
CO, US
Agent
Pennie & Edmonds
Assignee
Comfort Products
CO, US
IPC
A43B 13/14
A43B 13/12
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