Extensible rack system

FIG. 1 is a perspective view of an extensible rack system according to my new design;

FIG. 2 is a perspective view opposite from the perspective view of FIG. 1, showing in broken lines a cooperating member in a different position;

FIG. 3 is a front elevational view of the extensible rack system of FIG. 1;

FIG. 4 is a rear elevational view of the extensible rack system of FIG. 1;

FIG. 5 is a bottom view thereof;

FIG. 6 is an end view thereof; and,

FIG. 7 is an end view opposite from that of FIG. 6.

The broken line showing in FIGS. 1 and 2 is for illustrative purposes only and forms no part of the claimed design.