| CPC A47B 21/0371 (2013.01) | 17 Claims |
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1. A three-dimensional rest configured for use with a keyboard associated with a portable computing device, the three-dimensional rest comprising:
a bottom surface;
a perimeter wall protruding upward from the bottom surface to a perimeter height;
a plurality of projections extending upward from the bottom surface to a projection height, the plurality of projections comprising a first set of first projections, a second set of second projections, and a third set of third projections;
each of the first projections in the first set having a similar first structure, each of the second projections in the second set having a similar second structure, and each of the third projections in the third set having a similar third structure; the first structure, the second structure, and the third structure being distinct from each other in structure and each selected from a group comprising projections (a) being generally cylindrical in shape, (b) having a substantially uniform width and substantially uniform height and being disposed in a linear manner, (c) having a substantially uniform width and substantially uniform height and being disposed as a plurality of concentric circular segments, or (d) having a substantially uniform width and substantially uniform height and being disposed as a plurality of coupled linear segments, each linear segment in the plurality of coupled linear segments being disposed at a fixed angle relative to an adjacent linear segment in the plurality of coupled linear segments.
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