We claim the ornamental design for a bottle stopper, as shown and described.
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction of the patent disclosure as it appears in the United States Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever.
FIG. 1 is a top perspective view of a bottle stopper design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom side view thereof; and,
FIG. 8 is a top perspective view of the bottle stopper positioned within a bottle thereof.
The stippled shading in the drawings indicates a contrast in appearance.
In the drawings, the broken lines show a bottle that forms no part of the claim.