Patents by Inventor Frank J. Ernst

Frank J. Ernst 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: 4258491
    Abstract: A location indicating device has a size and shape to be carried on a key ring or chain and is adjustable to display various indicia corresponding to a location, such as that of a parked vehicle. The location indicating device is formed of a flat housing having opposite display and operating ends and an adjustable indicator assembly disposed in the housing including indicating strips carrying indicia for positioning at the display end, the indicating strips being movable via rotatable thumb wheels extending externally of the housing at the operating end to permit selective rotation thereof for positioning selected indicia at the display end of the housing.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: March 31, 1981
    Inventors: Frank J. Ernst, Milton P. Chernack, Gordon R. Perry