Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nathan Thatcher Ulrich0
Thomas Edward Devlin0
Alan J. Cook0
Chi Lam Yau0
Jeff Reed Greason0
Karl Thatcher Ulrich0
Kristin William Grube0
Date of Patent
May 1, 2012
0Patent Application Number
130422240
Date Filed
March 7, 2011
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A self-cleaning litter box (50) provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box (50) is configured to use a one piece litter cartridge (20) having a litter compartment (26) and a waste compartment 24. In another embodiment, the cartridge (20) is non-compartmentalized. In another embodiment, the system includes a rake assembly (56) configured with a drive assembly (58) that is protected from waste contamination. In accordance with the invention, the self-cleaning litter box (50) is configured to be used with all types of litter including crystal type litter.
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