Patents by Inventor David M. Majewski

David M. Majewski 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).

  • Flat top container and blank for constructing same
    Patent number: 4784272
    Abstract: A flat top, thermoplastic coated, paperboard container having weakened lines formed thereon such that the top may be opened by breaking through a weakened line at the front and progressively breaking the weakened lines along the sides upon peeling back the cover panel, to provide access to the contents. Provisions are included for covering the weakened lines on the inside of the container to prevent leakage.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: November 15, 1988
    Assignee: Pure-Pak Inc.
    Inventors: Robert E. Lisiecki, Richard A. Miller, David M. Majewski