Patents by Inventor Sheryl L. Lissner

Sheryl L. Lissner 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).

  • Keypad button guard
    Patent number: 6636606
    Abstract: A keypad button guard member is provided for a keypad type device, the button guard member arranged to provide a raised, encircling edging which may be releasably applied to a keypad device to encircle and provide a protective barrier about one or more selected buttons on the keypad device to prevent accidental and unintentional contact and depressing of the button and consequent activation of that button's function.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: October 21, 2003
    Inventors: Dale R. Lissner, Sheryl L. Lissner