Anticipate This!™ | Patent and Trademark Law Blog

They Invented What? (No. 110)

Posted in General Commentary by Jake Ward on August 25, 2019

Anticipate This!™ | Patent and Trademark Law Blog

U.S. Pat. No. 4,411,156:  Odor testing apparatus.


What is claimed is:

1. A structure for testing small animal litter, comprising a plurality of animal confinement compartments in which the animals live and consummate their daily functions and in which litter for animal waste is placed for use by the animals, a compartment for enclosing a person testing the odors of the litter in particular animal compartments, port means near the bottom of each animal compartment, separate air flow conduits connecting said port means with the odor tester compartment for drawing air from the lower portion of the animal compartment into the tester compartment, a valve means for controlling each of said conduits, a fan for creating a flow of air from said animal compartments through selected port means and conduits and into said tester compartment, and an access door through which a tester can enter the tester compartment…

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