Patents by Inventor Elizabeth Ann Walton Stewart

Elizabeth Ann Walton 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).

  • Sealable food container with lid retaining sidewall shelf
    Publication number: 20020175171
    Abstract: A sealable food container includes a base serving member such as a bowl with a generally planar central portion, a sidewall and a flange. The sidewall defines an annular sealing region with an annular sealing portion, a stop ridge and a laterally extending retaining shelf. A lid is provided with a peripheral portion adapted to be retained by the annular base sealing portion and to be secured by the stop ridge. In one preferred embodiment, the lid is a planar paperboard lid provided with a tab and the annular sealing portion of the base is an undercut groove in its sidewall.
    Type: Application
    Filed: May 20, 2002
    Publication date: November 28, 2002
    Inventors: Elizabeth Ann Walton Stewart, Rebecca E. Whitmore, Mark B. Littlejohn, Margaret P. Neer, Debra D. Bowers, Jerome G. Dees, Gerald J. Van Handel