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The instant invention provides a pet litter box for a household pet such as a cat or a dog. The pet litter box may include a housing having several vertically spaced slots located in one face of the housing and several grooves located on an interior surface of the housing and associated with each sl

The instant invention provides a pet litter box for a household pet such as a cat or a dog. The pet litter box may include a housing having several vertically spaced slots located in one face of the housing and several grooves located on an interior surface of the housing and associated with each slot. The housing may also have a top opening and a bottom opening. A first imperforate tray may be positioned within a bottom slot of the housing and covered with pet litter material. After the pet has used the litter box on several occasions, a perforated tray may be positioned within an upper groove of the housing. Further, a second imperforate tray may be positioned within the litter box above the perforated tray. The litter box may be inverted and shaken, so unused litter material separates from commingled pet waste and used litter material and passes through apertures in the perforated tray. The first imperforate tray is removed from the litter box to expose the commingled pet waste and used litter material, so the waste may be removed from the litter box. The litter box is then ready for reuse, while remaining in the inverted position. A plurality of cleaning elements, such a brushes, may be provided to clean or brush a surface of an imperforate tray during removal from the pet litter box.

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A pet litter box comprising: a housing including a first opening, a second opening, and defining a plurality of grooves within an interior surface of said housing and a plurality of slots, each of said slots connected to and associated with one of said grooves; a plurality of planar elements, each o

A pet litter box comprising: a housing including a first opening, a second opening, and defining a plurality of grooves within an interior surface of said housing and a plurality of slots, each of said slots connected to and associated with one of said grooves; a plurality of planar elements, each of said planar elements configured to slide through one of said slots and within one of said grooves; and a cleaning element connected to said housing wherein said cleaning element is a brush extending substantially the entire length of one of said slots.