Patents by Inventor Robert D. Upton

Robert D. Upton 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).

  • Adjustable mailbox extender
    Patent number: 6161756
    Abstract: A adjustable mailbox extender for permitting adjustable extension of a mailbox from its support post. The adjustable mailbox extender includes an elongate bottom track designed for attachment to a support structure and a top track slidably mounted on the bottom track to permit sliding of the top track in a direction along the longitudinal axis of the bottom track. The top portion of the top track is designed for attaching a mailbox thereto adjacent a first end of the top track.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: December 19, 2000
    Inventor: Robert D. Upton