Patents by Inventor Patti Callan

Patti Callan 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).

  • Portable cat litter box
    Patent number: 7458337
    Abstract: A portable cat litter box comprises a lower portion having a pair of wheels mounted thereon, an upper portion that is attachable to the lower portion in order to collectively define an interior compartment for containing kitty litter, a door pivotally suspended in order to allow ingress and egress of a cat into the interior compartment, and an extension handle pivotally attached to the cat litter box to facilitate transportation thereof and which is lockable to the upper portion during non-use.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: December 2, 2008
    Inventor: Patti Callan
  • Portable cat litter box
    Publication number: 20080022938
    Abstract: A portable cat litter box comprises a lower portion having a pair of wheels mounted thereon, an upper portion that is attachable to the lower portion in order to collectively define an interior compartment for containing kitty litter, a door pivotally suspended in order to allow ingress and egress of a cat into the interior compartment, and an extension handle pivotally attached to the cat litter box to facilitate transportation thereof and which is lockable to the upper portion during non-use.
    Type: Application
    Filed: July 25, 2006
    Publication date: January 31, 2008
    Inventor: Patti Callan