Patents by Inventor Lawrence J. Barrett

Lawrence J. Barrett 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).

  • Convertible tray cabinet
    Patent number: 4082390
    Abstract: A convertible tray cabinet that can be used as a salesman's case having a base and a lid for carrying a nested stack of jewelry trays, and which cabinet can then be converted to a jewelry case with sliding trays therein by removing the lid, discarding the base, placing the lid on its side and sliding said trays into said lid on a plurality of spaced-apart ribs on the inside surfaces of opposed sidewalls of said lid. The ribs are vertical when the lid is used as a salesman's case and are horizontal when the lid is placed on its side and used as a jewelry case.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: April 4, 1978
    Assignee: C. H. Stuart Inc.
    Inventors: David L. Gibson, Lawrence J. Barrett, Patricia A. Moore, David R. Butler