US D302036 S
FIG. 1 is a top plan view of a nocturnal airway patency appliance for preventing occlusion of the oral airway of sleep apnea patients, showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a side elevational view thereof, the opposite side being identical thereto; and
FIG. 5 is a rear elevational view thereof.