The ornamental design for an alarmed latch assembly for a sliding door, as shown and described.
FIG. 1 is a top, front, and right side perspective view of an alarmed latch
assembly for a sliding door showing my new design, the cable assembly
being shown broken-away for convenience of illustration;
FIG. 2 is a bottom plan view thereof, shown in a latched position;
FIG. 3 is a rear elevational view thereof, shown in a latched position; and
FIG. 4 is a reduced top, front, and right side perspective view thereof,
with the broken-line showing of a portion of the sliding door assembly
being for illustrative purposes only and forming no part of the claimed
design.