SAFETY FOOTWEAR
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United States of America Patent
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Mar 20, 2017
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Mar 13, 2013
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Abstract
A method of constructing footwear includes providing a mold having an inner cavity, injecting an expandable material into the inner cavity, removing the expandable material from the inner cavity such that the material expands to form a footwear-shaped shell having an inner cavity and at least one recessed area offset from an inner surface of the shell, and inserting a chassis within the inner cavity of the expanded shell. The chassis has one or more components adapted to protect a user's foot from injury. The insertion of the chassis within the shell permanently affixes the one or more components within the at least one recessed area of the shell.
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