Patents by Inventor Stewart L. Bolton

Stewart L. Bolton 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).

  • Patent number: 5688544
    Abstract: A container for packaging a particulate product under pressure or vacuum conditions with an easy opening closure structure which allows venting prior to uncovering of the product opening. In one form, an easy peel flexible lid covers a shelf area and a product opening in the top of the can. Peeling back the lid first uncovers the vent opening, permitting the flow of gases but preventing the flow of particulate product, and then uncovers the product opening. Alternatively, the closure structure may be formed by multiple layers of a flexible material, the lower layer of which has the vent opening which is uncovered by peeling back the top layer, after which the product opening is uncovered.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: November 18, 1997
    Assignee: Kraft Foods, Inc.
    Inventors: Stewart L. Bolton, Michael E. Delonis
  • Patent number: 5078289
    Abstract: A container for a flowable product, such as liquid coffee or the like, having a measuring cup closure. The container neck is preferably closed by an inner seal and has secured thereto the lower portion of a surrounding ring member. An upper portion of this ring member telescopically and lockably receives therein the open end of a measuring cup. An internal flange of the ring member includes a bottom surface which seals against the neck edge and the upper portion includes a circumferential bead which forms a seal with the outside of the open end of the measuring cup.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: January 7, 1992
    Assignee: Kraft General Foods, Inc.
    Inventors: Stewart L. Bolton, Edward A. Kozloski
  • Patent number: D375898
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: November 26, 1996
    Assignee: Kraft Foods, Inc.
    Inventor: Stewart L. Bolton
  • Patent number: D381582
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: July 29, 1997
    Assignee: Kraft Foods, Inc.
    Inventor: Stewart L. Bolton