A kitty box is provided for use in the home, camper or van. The kitty box allows pets to perform their excretory functions inside during times of confinement. Cats and small dogs can be trained to perform their excretory functions atop the kitty box. Solid feces stay on top of a screen platform which...http://www.google.com/patents/US4649578?utm_source=gb-gplus-sharePatent US4649578 - Kitty box
