The ornamental design for an interiordoorstop, as shown and described.
FIG. 1 is a partial isometric view of an interior door stop.
FIG. 2 is an obverse isometric view of the interior door stop of FIG. 1.
FIG. 3 is a top plan view of the interior door stop of FIG. 1.
FIG. 4 is a bottom plan view of the interior door stop of FIG. 1.
FIG. 5 is a front elevation view of the interior door stop of FIG. 1.
FIG. 6 is a rear elevation view of the interior door stop of FIG. 1.
FIG. 7 is a left side elevation view of the interior door stop of FIG. 1.
FIG. 8 is a right side elevation view of the interior door stop of FIG. 1; and,
FIG. 9 is an environmental isometric view of the interior door stop of FIG. 1.
Portions of FIGS. 1 through 9 are shown in evenly spaced broken lines and dash-dot-dash boundary lines illustrating portions of the article that form no part of the claimed design, and phantom lines illustrating environmental subject matter including an interior door jamb set that form no part of the claimed design.