Patents by Inventor Stephen Keane

Stephen Keane 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).

  • Utility knife
    Patent number: 4884342
    Abstract: A cutting device including a handle and blade. The blade being detachably connectable to the handle, and the handle including a guidance mechanism. This guidance mechanism has a convex peripheral edge and is rotatively connected to the handle. The cutting device also includes an engagement and disengagement mechanism for operatively interrelating the blade with the guidance mechanism.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: December 5, 1989
    Assignee: William J. McNamara
    Inventors: William J. McNamara, Stephen Keane