Patents by Inventor Rudolph Bursani

Rudolph Bursani 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).

  • Door hinge coupling device
    Patent number: 4057873
    Abstract: Projections in door hinge plates penetrate and bear against cooperating slots in opposite plates of door hinges to prevent a locked door from being removed from a doorjamb by removing the hinge pintles.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: November 15, 1977
    Inventor: Rudolph Bursani