Patents by Inventor Wayne A. Sphar

Wayne A. Sphar 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: 5373809
    Abstract: A pet cage door with a raised central section comprising a rectangular screen formed of a plurality of spaced horizontal and vertical wires coupled in a mesh-like configuration and constituting a door, the door being positionable over the front screen of an animal cage formed with a rectangular opening of a predetermined height and width, the door being formed of horizontal and vertical wires with a height and width greater than the height and width of the opening; the rectangular screen having a raised central portion and peripheral regions formed vertically and horizontally as extensions of the central portion, the peripheral portions being beveled at an angle with respect to the central portion and terminating in horizontal and vertical end wires adapted to contact the front screen of the cage when the door is in a closed orientation; a plurality of wire loops encompassing an endmost wire of the door and an adjacent wire of the cage front screen to constitute a hinge for opening and closing the door, at le
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: December 20, 1994
    Inventor: Wayne A. Sphar