Patents by Inventor Paul Ostrow

Paul Ostrow 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).

  • Temporary guard railing
    Patent number: 6220577
    Abstract: A temporary guard rail system for use during building construction which utilizes a flex joint which incorporates a heavy duty spring. The flex joint is slidably mounted to the ends of adjacent rail members. Utilization of the flex joint permits guard rails to be installed in varied orientations and is not limited to use on a horizontal plane.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: April 24, 2001
    Inventor: Paul Ostrow