Retainer ring for substrate

FIG. 1 is a top perspective view of a retainer ring for substrate showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is an enlarged cross-section view thereof, taken along the line 9 - 9 of part 9 of FIG. 3 ;

FIG. 10 is an enlarged cross-section view thereof, taken along the line 10 - 10 of part 10 of FIG. 3 ;

FIG. 11 is an enlarged cross-section view thereof, taken along the line 11 - 11 of part 11 of FIG. 3 ;

FIG. 12 is an enlarged perspective view thereof, observed from an inside of the retainer ring and taken along the line 12 , 13 - 12 , 13 of FIG. 4 ; and,

FIG. 13 is an enlarged perspective view thereof, observed from an outside of the retainer ring and taken along the line 12 , 13 - 12 , 13 of FIG. 4 .

The broken lines depict environmental subject matter only and form no part of the claimed design.