Patent Publication Number: US-D763742-S

Title: Bolster spring

Description:
FIG. 1  is a perspective top and left side view of a bolster spring having the inventive design; 
         FIG. 2  is a rear view of the bolster spring shown in  FIG. 1 ; 
         FIG. 3  is front view of the bolster spring shown in  FIG. 1 ; 
         FIG. 4  is a left side view of the bolster spring shown in  FIG. 1 ; 
         FIG. 5  is a right side view of the bolster spring shown in  FIG. 1 ; 
         FIG. 6  is a to view of the bolster spring shown in  FIG. 1 ; and, 
         FIG. 7  is a bottom view of the bolster spring shown in  FIG. 1 . 
       The broken lines in the drawings are for the purpose of illustrating portions of the bolster spring that form no part of the claimed design.