The ornamental design for a protectivecap for a baby bottle, as shown and described.
FIG. 1 is a perspective view illustrating a protective cap for a baby
bottle embodying my new design, the dotted line depiction of a baby bottle
and nipple being for illustrative purposes only;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a transverse vertical sectional view taken generally on the line
5--5 of FIG. 3.