Door knob

Description

FIG. 1 is a perspective view of a door knob showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof; and,

FIG. 4 is a top view thereof, the bottom view, the right side view and the left side view being mirror images.

The broken line structure is included for the purposes of illustrating environmental structure and forms no part of the claimed design.

Claims

The ornamental design for a door knob, as shown and described.