07681333 is referenced by 10 patents and cites 180 patents.

The present invention provides an interchangeable shoe footbed cartridge system. The system includes a footbed such as a midsole, insole or a sockliner. A cartridge is inserted into or otherwise attached to the forefoot section of the footbed. Multiple cartridges of varying depths, widths and/or lengths may be provided. The wearer can select a cartridge to achieve a desired fit. Because right and left feet may be of different sizes, different cartridges may be chosen for each foot. Furthermore, the user may swap cartridges depending upon different conditions, or to change the stiffness of the cartridge. Additionally, a slipcover having a stretchable portion may be placed over the cartridge system. The cartridges enable a footwear manufacturer to produce fewer shoe sizes while fitting more of the population. This reduces manufacturing, shipping, warehousing and accounting costs. All levels of the supply chain, as well as the end customers, will greatly benefit from the method of supplying footwear.

Title
Shoe footbed system with interchangeable cartridges
Application Number
11/259563
Publication Number
7681333 (B2)
Application Date
October 26, 2005
Publication Date
March 23, 2010
Inventor
Douglas E Clark
Durham
NH, US
Charles Kraeuter
Lake Oswego
OR, US
Simon Luthi
Lake Oswego
OR, US
David E Miller
Dayton
ME, US
Peter Dillon
Topsfield
MA, US
John Healy
Madbury
NH, US
Alexander Dardinski
Newburyport
MA, US
Agent
Lerner David Littenberg Krumholz & Mentlik
Assignee
The Timberland Company
NH, US
IPC
A43B 3/24
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