Patents by Inventor Nicholas R. Oster

Nicholas R. Oster 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).

  • Retractable crowd control barrier
    Patent number: 4844420
    Abstract: A retractable crowd control barrier is provided and consists of a housing carried on any type of post member in which an elongated tape is conveniently stored within the housing on a forward wound spring-actuated spool assembly and can be extended therefrom into a position to guide pedestrian traffic and maintain an orderly assembly of people.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: July 4, 1989
    Inventor: Nicholas R. Oster