The ornamental design for a protectivesleeve for a vial, as shown and described.
FIG. 1 is a perspective view of a protective sleeve for a vial showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof; and,
FIG. 4 is a sectional perspective view similar to FIG. 1 with the section running parallel to the longitudinal axis of the protective sleeve for a vial.
The broken line showing of a medicinal vial in FIG. 1 is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design. Surfaces or portions of the protective sleeve for a vial not shown in the drawings or described in the specification form no part of the claimed design.