Door Knob

FIG. 1 is a top, front side perspective view of a door knob showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of portion 9 in FIG. 1 ; and,

FIG. 10 is an enlarged view of portion 10 in FIG. 2 .

The evenly dashed broken lines illustrate features of the door knob that form no part of the claimed design. The unevenly dashed broken lines define the boundary of enlarged views and form no part of the claimed design.