Seat Lowering Base Plate

FIG. 1 is a perspective view of a seat lowering base plate showing my new design in use; FIG. 2 is a top view thereof; FIG. 3 is a bottom view thereof; FIG. 4 is a left side view thereof; FIG. 5 is a right side view thereof; FIG. 6 is a rear view thereof; and, FIG. 7 is a front view thereof. The portion of the seat shown in broken lines in FIG. 1 denotes the environmental use of the design and is not part of the claimed design.