Patents by Inventor Mary M. Arenz

Mary M. Arenz 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).

  • Disposable litter box and sheet assembly
    Patent number: 4646685
    Abstract: A litter box and sheet assembly, a panel of box-forming material, and a sheet secured to a central portion of the panel. The panel has side and end flaps free of the sheet which may be folded upwardly from a central portion of the panel to form a litter box for cats.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: March 3, 1987
    Inventor: Mary M. Arenz