Patents by Inventor Margaret M. Harwick

Margaret M. Harwick 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).

  • Weight adjustable auxiliary base unit for a weight lifting device
    Patent number: 4787628
    Abstract: A weight adjustable auxiliary base unit for a weight lifting device is attached to the uppermost weight plate of the weight lifting device. The base unit is generally a compartmentalized box sized to span the width of the weight plates. The box compartments are sized to hold weight bars of identical lengths but of different weights. A self fastening strap is mounted on the box and straps the box to the uppermost of the weight plates.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: November 29, 1988
    Inventors: Milton C. Harwick, Margaret M. Harwick