Patents by Inventor Robert Henry Burr

Robert Henry Burr 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).

  • Publication number: 20030209387
    Abstract: Ladder Accessory with a first clamp assembly capable of removably retaining a support pole, a second clamp assembly capable of attaching to the leg of a ladder, the first and second clamp assemblies being connected by a retaining screw, the first clamp having a block containing a bisected cylindrical cutout. A locking knob that draws the two halves of the cylindrical cutout together thereby retaining the pole. The second clamp has a plurality of opposed gripping fingers. Threaded thumb screws allow the second clamp to be fastened to the leg of a standard ladder. An open topped container has integral side walls and a base plate. A pole retaining socket on the underside of the base plate retains the support pole.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 13, 2003
    Inventor: Robert Henry Burr