The ornamental design for a contouredstator, as shown and described.
FIG. 1 is a top view of a contoured stator showing our new design, the bottom view being a mirror image thereof; and,
FIG. 2 is a perspective view thereof.
The broken line in FIG. 1 represents a boundary of the claimed design and forms no part of the claimed design. The broken lines showing environmental structure in FIG. 2 are for illustrative purposes only and form no part of the claimed design.