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System for modifying properties of an article of footwear

  • US 6,920,707 B1
  • Filed: 05/14/2002
  • Issued: 07/26/2005
  • Est. Priority Date: 05/14/2002
  • Status: Active Grant
First Claim
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1. A system for modifying at least one variable property of an article of footwear, said system comprising a foot-supporting member and an insert portion, said foot-supporting member being removable from a void within said footwear, and said foot-supporting member having a frame portion that defines an aperture for removably-receiving said insert portion, a property of said footwear being modified by inserting said insert portion into said aperture, and said foot-supporting member including a restraining member that is attached to at least a portion of a surface of said frame portion and unattached to a surface of said insert portion, said restraining member extending across said aperture to restrain movement of said insert portion when said insert portion is received by said aperture.

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