Patents by Inventor Virginia L. Gabbert

Virginia L. Gabbert 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).

  • Non-clogging cat litter sifting device
    Patent number: 5507248
    Abstract: A cat litter sifting device for use with clumping litter includes a pair of nesting pans, the inner one of which has a plurality of holes sized and spaced apart to pass unclumped litter but which trap substantially all clumped litter and fecal matter. The inner pan has uniform bottom and side walls and is closely fitted in the outer pan so that there are substantially no gaps for trapping litter between the pans.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: April 16, 1996
    Inventor: Virginia L. Gabbert