Patents by Inventor E. D. Shastal

E. D. Shastal 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: 4988012
    Abstract: A closure is provided for selectively closing an opening of a container, including a base element arranged to be affixed to a container adjacent an opening therein. In one embodiment, the closure is provided with tamper-evident film fixed to the base element, and a control element is pivotally movable relative to the base element between open and closed positions. When the base element is affixed to the container, the tamper-evident film obstructs the container opening. When the control element pivots to the open position, the tamper-evident film is visible, and can be punctured or otherwise removed. According to another embodiment of the invention, a closure is provided for a container having a tamper-evident film secured thereto overlying the opening in a container.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: January 29, 1991
    Inventor: E. D. Shastal