Patents by Inventor Jeffrey E. Steffens

Jeffrey E. Steffens 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).

  • Tamper-evident closure
    Patent number: 7223015
    Abstract: A security bag includes a tamper-evident closure which provides a visual indication if the closure is opened. The closure includes an ink layer deposited on one wall of the security bag or on a flexible strip secured to one wall of the security bag, and an adhesive layer in overlying relationship with the ink layer for sealing the bag closed. The ink layer includes a release material deposited in a predetermined pattern, and a layer of a solid ink applied over the release material so that the predetermined pattern of the release material is not visible in the closure. The solid ink layer includes void spaces arranged in a predetermined pattern. Preferably, the pattern of the void spaces is out of registry with the pattern of the release material so that the void spaces and release material overlap to varying degrees in the closure. If the closure is forced open, the solid ink will delaminate from the surface on which it is printed, revealing in the closure the predetermined pattern of the release material.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: May 29, 2007
    Assignee: Superior Bag Manufacturing Corporation
    Inventor: Jeffrey E. Steffens
  • Tamper-evident closure
    Publication number: 20040264813
    Abstract: A security bag includes a tamper-evident closure which provides a visual indication if the closure is opened. The closure includes an ink layer deposited on one wall of the security bag or on a flexible strip secured to one wall of the security bag, and an adhesive layer in overlying relationship with the ink layer for sealing the bag closed. The ink layer includes a release material deposited in a predetermined pattern, and a layer of a solid ink applied over the release material so that the predetermined pattern of the release material is not visible in the closure. The solid ink layer includes void spaces arranged in a predetermined pattern. Preferably, the pattern of the void spaces is out of registry with the pattern of the release material so that the void spaces and release material overlap to varying degrees in the closure. If the closure is forced open, the solid ink will delaminate from the surface on which it is printed, revealing in the closure the predetermined pattern of the release material.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Applicant: Superior Bag Manufacturing Corporation
    Inventor: Jeffrey E. Steffens