FIG. 1 is a perspective view of a quad cane shown in the condition of use;
FIG. 2 is a right side elevational view thereof with the support member portion being shown in a vertical position;
FIG. 3 is another right side elevational view thereof with the support member portion being shown in a first horizontal position;
FIG. 4 is another right side elevational view thereof with the support member portion being shown in a second horizontal position;
FIG. 5 is a left side elevational view thereof with the support member portion being shown in a vertical position;
FIG. 6 is a rear elevational view thereof with the support member portion being shown in a vertical position;
FIG. 7 is another rear elevational view thereof with the support member portion being shown in a horizontal position;
FIG. 8 is a front elevational view thereof with the support member portion being shown in a vertical position;
FIG. 9 is another front elevational view thereof with the support member portion being shown in a horizontal position;
FIG. 10 is a top plan view thereof with the support member portion being shown in a vertical position;
FIG. 11 is a fragmental top plan view thereof with the support member portion being shown in a first horizontal position;
FIG. 12 is another fragmental top plan view thereof with the support member portion being shown in a second horizontal position;
FIG. 13 is another fragmental top plan view thereof with the support member portion being shown in a third horizontal position;
FIG. 14 is another fragmental top plan view thereof with the support member portion being shown in a fourth horizontal position;
FIG. 15 is a bottom plan view thereof with the support member portion being shown in a first horizontal position;
FIG. 16 is a fragmental bottom plan view thereof with the support member portion being shown in a first horizontal position;
FIG. 17 is another fragmental bottom plan view thereof with the support member portion being shown in a second horizontal position;
FIG. 18 is another fragmental bottom plan view thereof with the support member portion being shown in a third horizontal position; and,
FIG. 19 is another fragmental bottom plan view thereof with the support member portion being shown in a fourth horizontal position.
The broken line showing the user and floor in Figure No. 1 represents the environment. All other broken lines in the drawing views are included for the purpose of illustrating portions of the quad cane that form no part of the claimed design. None of the broken lines from a part of the claimed design.