The ornamental design for a laptopstand, as shown and described.
FIG. 1 is a front perspective view of a laptop stand, showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left elevation view thereof, the right elevation view being a mirror image thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a front perspective view of the laptop stand shown in use.
The broken lines showing a laptop in FIG. 7 depicts environmental subject matter that forms no part of the claimed design, while the remaining broken lines shown in the drawings depict portions of the laptop stand that form no part of the claimed design.