Patent Publication Number: US-D506615-S

Title: Tread configuration on folding case

Description:
FIG. 1 is a perspective view of the tread configuration in folded condition for use on a front side and an end portion of a folding case shown in broken lines; 
     FIG. 2 is a perspective view of the tread design for use on a rear side of the FIG. 1 case; 
     FIG. 3 is a plan view of the FIG. 1 and FIG. 2 tread configuration in unfolded condition for use on front and rear sides, and at the end, of the FIG. 1 case shown in broken lines; and, 
     FIG. 4 is a plan view like FIG. 3, showing a modified tread configuration with arcuate edges, for use on front and rear sides, and at the end, of a modified case shown in broken lines.