Backpack

Abstract

Claims

The ornamental design for a backpack, as shown and described.

Description

(1) FIG. 1 is a front elevational view of a backpack showing our new design;

(2) FIG. 2 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

(3) FIG. 3 is a rear elevational view thereof;

(4) FIG. 4 is a top, front, left side perspective view thereof;

(5) FIG. 5 is a top, rear, right side perspective view thereof;

(6) FIG. 6 is a top plan view thereof; and,

(7) FIG. 7 is a bottom plan view thereof.

(8) The broken lines illustrate portions of the backpack and form no part of the claimed design.