Patents by Inventor Shirley Feinstein

Shirley Feinstein 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).

  • Intraoral radiographic film packet
    Patent number: 4791657
    Abstract: A dental radiographic film packet includes soft corners for greater patient comfort. Corner areas contain additional air space to permit additional flexing of the film chip in these areas. Furthermore, other internal structures, such as cardboard elements, have been removed to increase flexibility in these areas. The outer surface of the film packet is seamless at the corners to eliminate any sharp edges.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: December 13, 1988
    Inventors: Alan Kirsch, Shirley Feinstein