Multi-chamber cushion for footwear

Boots – shoes – and leggings – Soles – Cushion

Reexamination Certificate

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C036S00300B, C036S03500R

Reexamination Certificate

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07966749

ABSTRACT:
A resilient cushioning device for incorporation in an article of footwear has chambers interconnected by a corrugated passageway. The passageway fluidly connects a heel region having at least one chamber and a forefoot region having at least one chamber. The corrugation of the passageway make the passageway adjustable so that the resilient cushioning device fits a plurality of different articles of footwear. For example the passageway is adjustable so that it is expandable lengthwise so that the resilient cushioning device fits a plurality of sizes of articles and/or so that it bends sideways so that the resilient cushioning device fits a plurality of configurations of articles of footwear.

REFERENCES:
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patent: 6453577 (2002-09-01), Litchfield et al.
patent: 6505420 (2003-01-01), Litchfield et al.
patent: 6745499 (2004-06-01), Christensen et al.
patent: 2003/0101619 (2003-06-01), Litchfield et al.

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