Patents by Inventor Leonard E. Johnson, Jr.

Leonard E. Johnson, Jr. 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
    Patent number: 4873744
    Abstract: A door hinge adapted for pivotally securing a door to a second door or a supporting frame in which the two hinge plates of the hinge are connected by pinned inter-engaging tab and knuckle parts so that at least two of the tab parts support at least two of the knuckle parts and provide bearing surfaces for the knuckle parts upon pivoting movement of the hinge plates.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: October 17, 1989
    Assignee: L. E. Johnson Products, Inc.
    Inventor: Leonard E. Johnson, Jr.
  • Sliding door frame corner lock
    Patent number: 4478006
    Abstract: A lock for rail and stile members of a sliding door frame. The lock includes an actuator and an associated slide member, each having protrusions which can be extended into the door frame members when the actuator is moved into a lock position.
    Type: Grant
    Filed: August 11, 1983
    Date of Patent: October 23, 1984
    Assignee: L. E. Johnson, Inc.
    Inventor: Leonard E. Johnson, Jr.