Patents by Inventor William K. Duvall

William K. Duvall 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).

  • Shampoo box for shower enclosure
    Patent number: 5307530
    Abstract: A shampoo box for holding toiletries within a shower enclosure has a watertight one-piece body which is disposed within a frame attached to the interior of a shower wall. The frame is formed to substantially surround the body such that it snugly receives and substantially supports the body. The frame may be attached to a vertical wall stud by nails or screws. The box is specifically sized to contain larger toiletry articles such as bottles of shampoo to provide convenient access thereto during showering. A method for installing the same is disclosed.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: May 3, 1994
    Inventors: William K. Duvall, David A. Rieman
  • Shampoo box for shower enclosure
    Patent number: 5241715
    Abstract: A shampoo box for holding toiletries within a shower enclosure has a watertight one-piece body which is disposed within a frame attached to the interior of a shower wall. The frame is formed to substantially surround the body such that it snugly receives and substantially supports the body. The frame may be attached to a vertical wall stud by nails or screws. The box is specifically sized to contain larger toiletry articles such as bottles of shampoo to provide convenient access thereto during showering. A method for installing the same is disclosed.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: September 7, 1993
    Inventors: William K. Duvall, David A. Rieman