The ornamental design for a curtainvalance, as shown and described.
FIG. 1 is a front view of a curtain valance showing my new design in the
flat state;
FIG. 2 is another front view of the curtain valance of FIG. 1 showing the
curtain valance in the gathered state; and,
FIG. 3 is a rear view of the gathered curtain valance of FIG. 2.
The curtain valance which is partially shown for ease of illustration is of
indeterminate length. The pattern disclosed repeats uniformly throughout
the length of the valance.