USD329550S - Portable desk for use atop an open trash receptacle

Info

FIG. 1 is a perspective view of a portable desk for use atop an open trash receptacle, showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan thereof.

The broken lines shown in FIGS. 1, 2 and 4 indicate environmental structure and form no part of the claimed design.

The ornamental design for a portable desk for use atop an open trash receptacle, as shown and described.