FIG. 1 is a front elevational view of a protective case;

FIG. 2 is a top plan view of a protective case;

FIG. 3 is a bottom plan view of a protective case;

FIG. 4 is a left side elevational view of a protective case;

FIG. 5 is a right side elevational view of a protective case;

FIG. 6 is a rear elevational view of a protective case; and,

FIG. 7 is a perspective view of a protective case when opened.

The broken line showing of the interior in FIG. 7 is for illustrative purposes only and forms no part of the claimed design.