Patents by Inventor John A. Pfriender

John A. Pfriender 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).

  • Patent number: 4520758
    Abstract: An animal house is provided which is particularly adaptable for use with cats. The house is formed of an elongated base adapted to stand substantially vertical and a platform at the upper end of the base to form an animal perch. Access is permitted to the interior of the base for the animal to enter and leave the house. It is contemplated that the house can be formed of a unitary single piece of self-supporting material and in one form include an elongated substantially vertical base tapering inwardly from bottom to top and a substantially horizontal platform on the upper end of the base forming the animal's perch. The base is hollow with a hole provided for access to the interior of the house.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: June 4, 1985
    Inventor: John A. Pfriender
  • Patent number: D338283
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: August 10, 1993
    Inventor: John A. Pfriender