Door latch

FIG. 1 is a front perspective view of a door latch having the inventive ornamental design;

FIG. 2 is a top view of the door latch of FIG. 1;

FIG. 3 is a bottom view of the door latch of FIG. 1;

FIG. 4 is a front view of the door latch of FIG. 1 with phantom lines representing door latch, card reader slot, and LED windows omitted for clarity; and,

FIG. 5 is a side view of the door latch of FIG. 1.

Any broken line illustration in the drawing disclosure is not part of the design sought to be patented.

FIGS. 2-5 are shown on an enlarged scale.