Abrasive liner for cat litter boxes; Animal activated animal feeders; Animal activated livestock waterers; Animal litter pans; Automatic pet waterers; Bird feeders; Cat litter pans; Disposable liner pads for animal litter boxes; Drinking troughs; Feeding troughs; Hand-operated devices for scratching pets; Pet bowls; Pet water fountains being dishes; Scoops for the disposal of pet waste; Strainers for household purposes