Patents by Inventor Stephen R. Ersteniuk

Stephen R. Ersteniuk 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).

  • Protective helmet for firefighters
    Patent number: 4975980
    Abstract: A fire helmet comprised of a helmet shell adapted to receive the head of a wearer and fit over the crown of the head of the wearer, a radially, inwardly-spaced liner attached to the inside of said helmet shell, a headband attached to said liner, fire-resistant ear flaps secured to said liner, and a fire-resistant, disengagable hood permently secured to said headband.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: December 11, 1990
    Inventor: Stephen R. Ersteniuk