Electronic cigarette

1 . 1 is a perspective view of an electronic cigarette, according to a first embodiment of our new design;

1 . 2 is a right side view thereof;

1 . 3 is a left side view thereof;

1 . 4 is a front view thereof;

1 . 5 is a rear view thereof;

1 . 6 is a top view thereof;

1 . 7 is a bottom view thereof;

4 . 1 is a perspective view of an electronic cigarette, according to a second embodiment of our new design;

4 . 2 is a right side view thereof;

4 . 3 is a left side view thereof;

4 . 4 is a front view thereof;

4 . 5 is a rear view thereof;

4 . 6 is a top view thereof; and

4 . 7 is a bottom view thereof.

The broken lines in the drawings depict portions of the electronic cigarette that form no part of the claimed design. The portion of the grayscale image shown in figure 4 . 7 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.