Anticipate This!™ | Patent and Trademark Law Blog

They Invented What? (No. 49)

Posted in General Commentary by Jake Ward on May 31, 2018

Anticipate This!™ | Patent and Trademark Law Blog

U.S. Pat. No. 5,216,979:  Toilet bowl mountable trap door litter box.


What is claimed is:

1. An animal litter box, with a trap door, mountable on a toiled bowl comprising: a generally elongate animal litter box having sidewall means and a bottom; mounting means for mounting of the animal litter box on top of a toilet bowl; a sidewalled well opening with significantly smaller cross sectional area than the bottom of said litter box depending from the animal litter box for holding litter and waste from an animal using the litter box; an opening and closing trap door means on said sidewalled well opening mounted with hinge means to the bottom of said animal litter box; and single trap door opening and closing means mounted on said animal litter box and connected to said trap door means for opening and closing of the trap door means to dump litter…

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