Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Paul Huang0
Date of Patent
February 19, 2019
0Patent Application Number
156289430
Date Filed
June 21, 2017
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A disposable liner assembly to be placed in a pan for the successive sifting of litter and removal of animal waste, each sheet is arranged above and below one another such that the sifting apertures in the sheet are above and below the solid portions of a sheet below and above it to form an apertures closure. Some embodiments are provided with positioning apertures in each sheet make it easy to properly offset the thin flexible sheets relative to one another. The present invention also includes a shielded liner retainer to be removably placed over the pan to cover and clamp the liners in a fix position.
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