Patents by Inventor Kelly Rotroff

Kelly Rotroff 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).

  • Collapsible animal box
    Patent number: 5765504
    Abstract: A collapsible animal box which can be conveniently shipped, marketed and discarded in collapsed form is disclosed. The box may contain animal litter and an animal litter container. Preferably, the animal box is constructed from a single cut and scored blank of foldable material. The assembled, fully extended animal box encloses a space sufficiently large to accommodate an animal litter container and at least one animal, and includes a door positioned to permit entry and egress by the animal.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: June 16, 1998
    Assignee: Topcat International Inc.
    Inventors: Riley Evans, Kelly Rotroff
  • Collapsible animal box
    Patent number: 5572951
    Abstract: A collapsible animal box which can be conveniently shipped, marketed and discarded in collapsed form is disclosed. The box may contain animal litter and an animal litter container. Preferably, the animal box is constructed from a single cut and scored blank of foldable material. The assembled, fully extended animal box encloses a space sufficiently large to accommodate an animal litter container and at least one animal, and includes a door positioned to permit entry and egress by the animal.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: November 12, 1996
    Inventors: Riley Evans, Kelly Rotroff