Patents by Inventor Douglas Michael Bartz

Douglas Michael Bartz 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).

  • Rotatable drink opening cover
    Patent number: 6722518
    Abstract: A rotatable cover for a tab actuated drink opening in a conventional beverage container, which cover is easily installed and removed, is reusable, and prevents the entry of objectionable debris including insects. The cover, having a bottom surface larger than the drink opening, includes a recessed top portion adapted to receive and engage the tab actuator securing it to the container. The cover and tab actuator rotate in concert to cover and uncover the drink opening.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: April 20, 2004
    Inventor: Douglas Michael Bartz