Patents by Inventor Ruby D. Berry

Ruby D. Berry 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).

  • Elevator bridge apparatus
    Patent number: 5170864
    Abstract: An apparatus is arranged to provide for a bridge from an elevator floor relative to an associated building floor to limit jarring and balancing associated in the transport of various carts thereacross, as well as limiting an effective spacing or gap between the elevator floor and the dwelling floor in use.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: December 15, 1992
    Inventor: Ruby D. Berry