Copyright © Françoise Herrmann
The original OOFos® thong sandal was awarded the US design patent USD621594S1, titled Sandal. The cover sheet patent drawing
is included below, together with an image of one marketed embodiment of the
patented design. As a reminder, a design patent covers only the ornamental
aspects of an invention, or the way the invention looks. Design patents contrast with utility patents, which cover how an invention works, is manufactured, or how the invention might be used.
The patent drawing below depicts lower and upper perspectives of the sandal. Per the specification of the design patent USD621594S1:
"Straps of the sandal are shown in broken line for illustrative purposes only and form no part of the claimed design."
Such a recitation gives more scope to the patented sandal design, which can have varying uppers. For example, the subsequent Oofos® slide sandal model, included below the patent drawing, falls within the scope of the patented sandal design, because of its footbed, even though the sandal has a slide upper, different from the broken line thong design of the drawing.
Reference
Oofos® (website) https://www.oofos.com/
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