The ornamental design for an umbrella handle, as shown and described.
FIG. 1 is a front-left perspective view illustrating our design for an umbrella handle.
FIG. 2 is a front view thereof.
FIG. 3 is a right side view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a left side view thereof.
FIG. 6 is a top view thereof.
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a right side view with an exemplary umbrella in broken lines.
The broken lines in FIGS. 1, 4 and 6 illustrate features of the article that form no part of the claimed design, and the broken lines in FIG. 8 depict environmental subject matter that also forms no part of the claimed design.
The umbrella handle is shown broken away in the middle to indicate that no length other than what is shown is claimed.