FIG. 1 is a front perspective view of a paired set of prongs for a patient interface according to a first embodiment of our design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a front perspective view of a paired set of prongs for a patient interface according to a second embodiment of our design;

FIG. 10 is a bottom perspective view thereof;

FIG. 11 is a front view thereof;

FIG. 12 is a rear view thereof;

FIG. 13 is a top view thereof;

FIG. 14 is a bottom view thereof;

FIG. 15 is a left side view thereof;

FIG. 16 is a right side view thereof;

FIG. 17 is a front perspective view of a paired set of prongs for a patient interface according to a third embodiment of our design;

FIG. 18 is a bottom perspective view thereof;

FIG. 19 is a front view thereof;

FIG. 20 is a rear view thereof;

FIG. 21 is a top view thereof;

FIG. 22 is a bottom view thereof;

FIG. 23 is a left side view thereof; and,

FIG. 24 is a right side view thereof.

FIGS. 1-24 use stippling which is not part of the claimed design.