The ornamental design for a protectivecover for an infant carrier handle, as shown and described.
FIG. 1 is a side elevation view of a protective cover for an infant carrier handle showing my new design;
FIG. 2 is a side elevation view thereof;
FIG. 3 is a left front perspective view thereof;
FIG. 4 is a right front perspective view thereof; and,
FIG. 5 is a front view thereof.
The broken line showing of the infant carrier and portions of the protective cover is included for the purpose of illustrating environmental structure and forms no part of the claimed design.