Backpack

1. Backpack

1 . 1 : Front

1 . 2 : Back

1 . 3 : Left

1 . 4 : Right

1 . 5 : Top

1 . 6 : Perspective

1 . 7 : Perspective

1 . 8 : Perspective

Backpack, extendable: fig. 1 . 1 - 1 . 6 show closed position; fig. 1 . 7 - 1 . 8 show 3D extended position; the irregularly interrupted fine lines are used to suggest volume and shape.

The broken lines in the drawings depict portions of a backpack and form no part of the claim.