Patents by Inventor Donald T. Stewart

Donald T. Stewart 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).

  • Oval container with interlocking nibs
    Patent number: 5139164
    Abstract: An oval dispensing package is provided with an oval container body and cap. Two sets of wedge-shaped nibs are formed on a wall near an open end of the container body and of the cap. Each of the two sets have a pair of individual nibs with one nib on either side of a major elliptical axis defining the oval and positioned near the terminii thereof.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: August 18, 1992
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventor: Donald T. Stewart