Patents by Inventor Leo D. Stafford, JR.

Leo D. Stafford, 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).

  • Attachable Lever Arm for Round Doorknobs
    Publication number: 20090151503
    Abstract: The lever arm is a tube containing a threaded adjustment assembly to receive the ends of an elasticized material to form an adjustable loop on one end to fit over and tighten around a round doorknob. The doorknob is opened by engaging the tube as a lever arm.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 18, 2009
    Inventor: Leo D. Stafford, JR.