We claim the ornamental design for a joint seal, as shown and described.
FIG. 1 is a perspective view of a first embodiment of the claimed design;
FIG. 2 is a front view of the claimed design of FIG. 1, with the rear view being a mirror image thereof;
FIG. 3 is a right side view of the claimed design of FIG. 1, with the left side view being a mirror image thereof;
FIG. 4 is a top plan view of the claimed design of FIG. 1;
FIG. 5 is a bottom plan view of the claimed design of FIG. 1;
FIG. 6 is a perspective view of a second embodiment of the claimed design;
FIG. 7 is a front view of the claimed design of FIG. 6, with the rear view being a mirror image thereof;
FIG. 8 is a right side view of the claimed design of FIG. 6, with the left side view being a mirror image thereof;
FIG. 9 is a top plan view of the claimed design of FIG. 6; and,
FIG. 10 is a bottom plan view of the claimed design of FIG. 6.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings depict portions of the joint seal and form no part of the claim. The joint seal is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.