FIG. 1 is a front elevation view of a first embodiment of an implant showing our new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top, right, front perspective view thereof;
FIG. 6 is a bottom, rear perspective view thereof;
FIG. 7 is a top, rear perspective view thereof;
FIG. 8 is a front elevation view of a second embodiment of an implant showing our new design;
FIG. 9 is a rear elevation view thereof;
FIG. 10 is a left side elevation view thereof;
FIG. 11 is a right side elevation view thereof;
FIG. 12 is a top, right, front perspective view thereof;
FIG. 13 is a bottom, rear perspective view thereof;
FIG. 14 is a top, rear perspective view thereof;
FIG. 15 is a front elevation view of a third embodiment of an implant showing our new design;
FIG. 16 is a rear elevation view thereof;
FIG. 17 is a left side elevation view thereof;
FIG. 18 is a right side elevation view thereof;
FIG. 19 is a top, left, front perspective view thereof;
FIG. 20 is a bottom, rear perspective view thereof;
FIG. 21 is a top, rear perspective view thereof;
FIG. 22 is a front elevation view of a fourth embodiment of an implant showing our new design;
FIG. 23 is a rear elevation view thereof;
FIG. 24 is a left side elevation view thereof;
FIG. 25 is a right side elevation view thereof;
FIG. 26 is a top, left, front perspective view thereof;
FIG. 27 is a bottom, rear perspective view thereof; and,
FIG. 28 is a top, rear perspective view thereof.
The broken line showing in FIGS. 8-14 and 22-28 represents unclaimed portions of the article and forms no part of the claimed design.