The ornamental design for a paintbrushcase, as shown and described.
FIG. 1 is a perspective view from above and to one side of the new design for a paintbrush case shown with a paintbrush handle extending outwards therefrom;
FIG. 2 is a magnified front view thereof;
FIG. 3 is a magnified rear view thereof;
FIG. 4 is a magnified left side view thereof;
FIG. 5 is a magnified right side view thereof;
FIG. 6 is a magnified top view thereof;
FIG. 7 is a magnified bottom view thereof; and,
FIG. 8 is a reduced elevation view thereof, showing the paintbrush case in an open configuration.
The paintbrush handle and the portions of the paintbrush case which are shown in broken lines, are for illustrative purposes only and form no part of the claimed design.