Patents by Inventor William B. Given

William B. Given 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).

  • Ladder tray
    Patent number: 4660794
    Abstract: A work tray for mounting on hollow rung ladders. The tray has a single shaft which goes through one rung of the ladder. Lock means are provided to keep the tray from rotating or from pulling out of the rung. Angular adjustment means are provided so that the tray may be kept level when the ladder is used at different angles.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 28, 1987
    Inventor: William B. Given