FIG. 1 is a rear elevation view of a protective case for electronic device showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is bottom plan view thereof;
FIG. 7 is a rear perspective view of thereof;
FIG. 8 is a front perspective view of thereof;
FIG. 9 is another rear perspective view of thereof, showing an alternate configuration;
FIG. 10 is another rear perspective view of thereof, showing another alternate configuration; and,
FIG. 11 is another rear perspective view of thereof, showing yet another alternate configuration.
Broken lines shown in the drawings are for the purpose of illustrating portions of the protective case for electronic device that form no part of the claimed design.