The ornamental design for a closure, as shown and described.
FIG. 1 is a front elevational view of a closure in accordance with the new design showing a container portion in a cross sectional view taken in the direction of line 1-1 of FIG. 3 and a top portion in a front elevational view;
FIG. 2 is a rear elevational view of the closure in accordance with the new design;
FIG. 3 is a right side elevational view of the closure in accordance with the new design;
FIG. 4 is a front elevational view of the closure in accordance with the new design showing the top portion attached in the optional upside down position;
FIG. 5 is a rear elevational view of the closure in accordance with the new design showing the top portion attached in the optional upside down position;
FIG. 6 is a left side elevational view of the closure in accordance with the new design showing the top portion attached in the optional upside down position; and,
FIG. 7 is a top plan view of the closure in accordance with the new design.
In FIGS. 2, 5 and 7, the evenly-spaced broken lines depict portions of the closure that form no part of the claim.