Patents by Inventor Donald E. Szymanski

Donald E. Szymanski 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).

  • Swing-away, emergency escape window
    Patent number: 5103591
    Abstract: A swing-away emergency escape window is provided which automatically swings outwardly from a closed position to an opened position when a latching handle is actuated. A method of converting a conventional window to the emergency escape window is described.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: April 14, 1992
    Inventor: Donald E. Szymanski