Electronic Cigarette

FIG. 1 is a perspective view of an electronic cigarette, according to a first embodiment of our new design; FIG. 2 is a right side view thereof; FIG. 3 is a left side view thereof; FIG. 4 is a front view thereof; FIG. 5 is a rear view thereof; FIG. 6 is a top view thereof; FIG. 7 is a bottom view thereof; FIG. 8 is a perspective view of an electronic cigarette, according to a second embodiment of our new design; FIG. 9 is a right side view thereof; FIG. 10 is a left side view thereof; FIG. 11 is a front view thereof; FIG. 12 is a rear view thereof; FIG. 13 is a top view thereof; and, FIG. 14 is a bottom view thereof. The broken lines in the drawings show portions of the electronic cigarette that form no part of the claimed design. The portion of FIG. 14 shown in a lighter tonal value within the broken-line perimeter illustrates a portion of the electronic cigarette that forms no part of the claimed design.