The ornamental design for an exteriorface of floormat retention patch, as shown and described.
FIG. 1 is a perspective view of the exterior face of floor mat retention
patch secured to the underneath side of an automobile floor mat, showing
my new design;
FIG. 2 is an enlarged plan view thereof;
FIG. 3 is an enlarged side elevational view thereof, the opposite side,
front and back elevational view being identical thereto; and,
FIG. 4 is a perspective view illustrating the use of multiple retention
patches on the underside of a floor mat.
The broken line showing in the drawings of a floor mat and an additional
retention patch is for environmental purposes and form no part of the
claimed design.