Patent ID: 8409688

Claim:
A foot mat for resting on a floor and for supporting a person who steps on the mat, the person wearing a shoe having a sole, the mat comprising a. a base having a sloping draining surface for draining water, the base having a front edge, a back edge, a left edge, and a right edge, the draining surface having a total area, the draining surface comprising a plurality of particle retainers for slowing removal of particles on the draining surface, the particle retainers being spaced apart from each other, and b. a plurality of projections, each projection having a top and having a cross-sectional area, the projections having a total cross-sectional area equal to the sum of the cross-sectional area of each projection, the projections being connected to the base for engaging with the sole of the shoe to support the person, wherein the total cross-sectional area of the projections is less than or equal to one quarter of the total area of the draining surface.