I claim the ornamental design for an upright rod for a standing umbrella, as shown and described.
FIG. 1 is a side elevation view of an upright rod for a standing umbrella showing my new design;
FIG. 2 is an enlarged perspective view of the break portion of FIG. 1;
FIG. 3 is a front elevation view of the break portion of FIG. 1;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view of FIG. 2; and,
FIG. 8 is a bottom plan view of FIG. 2.
The broken lines showing the umbrella base, cover, runner and ribs are shown to indicate portions of the umbrella and form no part of the claimed design. FIGS. 1-6 are shown with a symbolic break in the length. The appearance of any portion of the article between the break lines forms no part of the claimed design.