Patents by Inventor Kevin R. Prothe

Kevin R. Prothe 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).

  • Stackable mug
    Patent number: 5219419
    Abstract: A drinking mug constructed to nest when stacked with other mugs. A frusto-conical mug body is provided with a hollow handle which extends vertically and is spaced away from the mug body by an inverted channel beam having a web and two side flanges. When mugs are stacked, the mug bodies nest together and the handles nest together to minimize the height of the stack and thus provide a compact stack. Stacking lugs cooperate with lips on a handle connection beam to provide the stack with stability.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: June 15, 1993
    Assignee: Packer Plastics, Incorporated
    Inventor: Kevin R. Prothe