Patents by Inventor Gordon H. Leffingwell

Gordon H. Leffingwell 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).

  • Exerciser light alarm stick
    Patent number: 5577827
    Abstract: A flashlight is disclosed having a tube with an extension, a grip wrapped about its exterior, and a light in one end of the tube including a reflector with a bulb inside, and a switch connected to the bulb and to a battery, the tube also containing an alarm being a buzzer and a switch connecting the buzzer to the battery.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: November 26, 1996
    Assignee: ELA Systems, Inc.
    Inventors: Gordon H. Leffingwell, James D. O'Donnell