The ornamental design for a swivelgate latch, as shown and described.
FIG. 1 is a perspective view of a swivel gate latch showing the design;
FIG. 2 is a front elevation view of FIG. 1;
FIG. 3 is a rear elevation view of FIG. 1;
FIG. 4 is a first side elevation view of FIG. 1;
FIG. 5 is a second side view of FIG. 1;
FIG. 6 is a top elevation view of FIG. 1; and,
FIG. 7 is a bottom elevation view of FIG. 1.
The broken lines shown in the figures represent portions of the article that form no part of the claimed design.
The swivel gate latch 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.