FIG. 1 is a front perspective view of an floor jack extension;
FIG. 2 is an front, top perspective view of the floor jack extension of FIG. 1;
FIG. 3 is an front, bottom perspective view of the floor jack extension of FIG. 1;
FIG. 4 is a front view of the floor jack extension of FIG. 1
FIG. 5 is a top plan view of floor jack extension of FIG. 1;
FIG. 6 is a rear view of the floor jack extension of FIG. 1;
FIG. 7 is an front, top perspective view of a second embodiment of an floor jack extension;
FIG. 8 is an front, bottom perspective view of the second embodiment of the floor jack extension;
FIG. 9 is a front view of the second embodiment of the floor jack extension;
FIG. 10 is a top plan view of the second embodiment of the floor jack extension;
FIG. 11 is a rear view of the second embodiment of the floor jack extension;
FIG. 12 is an front, top perspective view of a third embodiment of an floor jack extension;
FIG. 13 is an front, bottom perspective view of the third embodiment of the floor jack extension;
FIG. 14 is a front view of the third embodiment of the floor jack extension;
FIG. 15 is a top plan view of the third embodiment of the floor jack extension;
FIG. 16 is a rear view of the third embodiment of the floor jack extension;
FIG. 17 is an front, top perspective view of a fourth embodiment of an floor jack extension;
FIG. 18 is an front, bottom perspective view of the fourth embodiment of the floor jack extension;
FIG. 19 is a front view of the fourth embodiment of the floor jack extension;
FIG. 20 is a top plan view of the fourth embodiment of the floor jack extension;
FIG. 21 is a rear view of the fourth embodiment of the floor jack extension;
FIG. 22 is an front, top perspective view of a fifth embodiment of an floor jack extension;
FIG. 23 is an front, bottom perspective view of the fifth embodiment of the floor jack extension;
FIG. 24 is a front view of the fifth embodiment of the floor jack extension;
FIG. 25 is a top plan view of the fifth embodiment of the floor jack extension;
FIG. 26 is a rear view of the fifth embodiment of the floor jack extension;
FIG. 27 is an front, top perspective view of a sixth embodiment of an floor jack extension;
FIG. 28 is an front, bottom perspective view of the sixth embodiment of the floor jack extension;
FIG. 29 is a front view of the sixth embodiment of the floor jack extension;
FIG. 30 is a top plan view of the sixth embodiment of the floor jack extension; and,
FIG. 31 is a rear view of the sixth embodiment of the floor jack extension.
In the drawings, the broken lines depict portions of the design that form no part of the claimed design.