The compressible lattice heel, spring back invention, invoked in the Kiziks no-hands slip-on footwear, has also received several US design patents. The US design patent USD943946S1, titled Lattice structure for footwear, was awarded on February 22, 2022.
Below, the patent Figure 1 depicts a side perspective view of the lattice structure for footwear, together with an image of an embodiment of the technology, found on the marketed Kizik Athens shoe model (in surf and lime colors for women). The dotted lines on the Figure 1 drawing indicate the portion of the design unprotected by the design patent. Thus, the rest of the footwear might vary as specified elsewhere in the description of the invention.
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