Patents by Inventor Frank P. Haack

Frank P. Haack 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).

  • Bicycle with frame articulated to undergo angular movement while being ridden
    Patent number: 4219209
    Abstract: A bicycle with an articulated frame is described for novelty riding use. A rider may manipulate a clutch while riding the bicycle to cause restraint to be removed from a joint joining front and rear frame portions of the bicycle and maneuver in such a way as to cause the two frame portions to be angularly aligned.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: August 26, 1980
    Inventor: Frank P. Haack