Upper rim for a sink

[0001]FIG. 1 is an upper perspective view of an upper rim for a sink showing my new design;

[0002]FIG. 2 is another upper perspective view thereof;

[0003]FIG. 3 is a lower perspective view thereof; and,

[0004]FIG. 4 is a top view thereof.

[0005]The upper rim for a sink and the environmental structure of the upper rim for a sink is shown with symbolic break lines in their length, width and height. The appearance of any portion of the upper rim for a sink between the break lines forms no part of the claimed design. The broken lines in the drawing show the symbolic break lines that form no part of the claimed design. The remaining broken lines show the environmental structure of the upper rim for a sink and form no part of the claimed design.