Patent Publication Number: US-D543087-S

Title: Doorknob

Description:
FIG. 1 is a perspective view of the new design for a doorknob; 
     FIG. 2 is a front elevational view of the new design for a doorknob; 
     FIG. 3 is a top plan view of the new design for a doorknob, the bottom plan view and the left and right side elevational views being mirror images; 
     FIG. 4 is a back elevational view of the new design for a doorknob; 
     FIG. 5 is a perspective view of a second embodiment of the new design for a doorknob; 
     FIG. 6 is a front elevational view of the second embodiment of the new design for a doorknob, the back view of the second embodiment being identical to that of the first embodiment; and, 
     FIG. 7 is top plan view of the new design for a doorknob, the bottom plan view and the left and right side elevational views being mirror images. 
     The broken lines in the Figures are for illustrative purposes only and form no part of the claimed design.