Patents by Inventor Neil A. McDowall

Neil A. McDowall 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).

  • Cement finisher's knee board
    Patent number: 4789046
    Abstract: A rigid light weight knee board for cement finishers. The body of the knee board comprises a high density extruded closed cell polystyrene foam. A water repellent cover made from soft pliable vinyl is provided for the board and includes an upright handle strap.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: December 6, 1988
    Assignee: Pro Board, Inc.
    Inventor: Neil A. McDowall