Patents by Inventor Donald E. Gerber

Donald E. Gerber 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).

  • Portable boat trailer
    Patent number: 4793625
    Abstract: A small boat trailer consists of a pair of spaced wheeled housing aligned and loosely supported apart by spacing members. A telescopic tongue has a rear end portion loosely connected to one of the spacing members. Included are two transverse cables connected to the spaced housings and a longitudinal cable connected to the opposite ends of the tongue. The structural members are forced together into a firm body by tightening all cables.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: December 27, 1988
    Inventor: Donald E. Gerber