| D248777 | Ladder platform | August, 1978 | Spencer et al. | D25/68 |
| 4186820 | Boarding ladder and straps | February, 1980 | Cosman et al. | |
| 4230202 | Roofing aid | October, 1980 | Kudra, III | |
| 4293967 | Pivotal deck ramp | October, 1981 | Ord | |
| 4538314 | Boarding ramp | September, 1985 | Baranowski | |
| 4630709 | Pool entry and exit device | December, 1986 | Taylor | |
| 4724925 | Boat boarding ladders | February, 1988 | Ritten | |
| 5065840 | Swimming pool safety ladder | November, 1991 | Cadigan | |
| 5333323 | Swimming pool with ladder | August, 1994 | Aymes | |
| 5592801 | Mobile stair system for pets and animals, method of making said mobile stair system | January, 1997 | Balzer | |
| 5634440 | Convertible step and ramp combination | June, 1997 | Mogck | |
| D388520 | Adjustable swimming pool ladder | December, 1997 | Hoffman, deceased et al. | D25/64 |
| 5829380 | Boat boarding system for dogs | November, 1998 | Smith | |
| D442289 | Vertical ladder movable to an inclined position | May, 2001 | Ziaylek, Jr. et al. | D25/64 |
| 6321689 | Animal rescue device for swimming pools | November, 2001 | Fulmer | |
| 6598562 | Pet pool safety system | July, 2003 | Dutkiewicz et al. |
FIG. 1 is perspective view of the pet pool ladder of my design, viewed from in front of, above, and from the right side of the ladder platform;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view of thereof;
FIG. 4 is a top view thereof; and,
FIG. 5 is a bottom view thereof.
The left side view comprises a mirror image of the right side view shown in FIG. 3.