Patents by Inventor Ron L. Nussle

Ron L. Nussle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Litter box
    Patent number: 5272999
    Abstract: A litter box has a tray having a bottom and an outlet at one end of the tray and a sifting element disposed within the tray and having a screen portion and a solid portion, the screen portion being disposed at an angle, facing the outlet of the tray, of 90 degrees or less as measured from the bottom of the tray to the screen portion, and the solid portion extending from the screen portion to the outlet of the tray.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: December 28, 1993
    Inventor: Ron L. Nussle
  • Litter box
    Patent number: 5167204
    Abstract: A litter box has a tray having a bottom and an outlet at one end of the tray and a sifting element disposed within the tray and having a screen portion and a solid portion, the screen portion being disposed at an angle, facing the outlet of the tray, of 90 degrees or less as measured from the bottom of the tray to the screen portion, and the solid portion extending from the sceen portion to the outlet of the tray.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: December 1, 1992
    Inventor: Ron L. Nussle