Patents by Inventor Thomas W. Buckman

Thomas W. Buckman 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 reclosable plastic bag
    Patent number: 6354738
    Abstract: A reclosable package is provided having a front wall and a rear wall joined at the bottom and sides and an open top containing a zipper. The zipper has a first profile and a second profile, each including interlocking members adapted to mate with each other. One profile has a flange secured to its associated wall at a location proximal a top end of that wall. The second profile has a flange portion secured to the other wall proximal a top end of that wall and to the first wall at a location below the location at which the first flange is secured to the first wall. A line of weakness extends along the second flange portion parallel to the profile interlocking member and between the two securing points.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: March 12, 2002
    Assignee: Illinois Tool Works Inc.
    Inventors: Thomas W. Buckman, John H. Schneider, Steven Ausnit