The ornamental design for a cover for portableelectronicdevice, as shown and described.
FIG. 1 is a bottom right front perspective view of a cover for portable electronic device showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The dashed broken lines in the figures represent unclaimed portions of the cover for portable electronic device and form no part of the claimed design.
The dot-dash broken lines in FIGS. 1 and 2 represent an unclaimed boundary line and form no part of the claimed design.