Patents by Inventor Leonard A. Cookson

Leonard A. Cookson 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).

  • Trays
    Patent number: 4573729
    Abstract: A demountable tray assembly comprises a cruciform base (3) supporting a pair of upright spaced-apart pillars (4) connected at the top by a carrying handle. A stack of trays (2) are located on the base by the pillars which pass through the trays mid-way between their ends, endwise or sideways movement of the trays thus being prevented. Spacers may be provided to maintain the trays in vertically spaced-apart relationship.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: March 4, 1986
    Inventor: Leonard A. Cookson