Patents by Inventor Richard N. Richardson

Richard N. Richardson 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).

  • Piggy back ski
    Patent number: 4227274
    Abstract: A piggy back ski (10) comprises a first ski section (12) secured to a second ski section (14) by a plurality of releasable fasteners (16). The first ski section (12) includes a foot binding (18) secured thereto. The second ski section (14) can be selectively disengaged during skiing to permit continuation on the first ski section (12). If desired, a releasable fastener (34) can be used to prevent disengagement of the ski sections (12, 14) during skiing.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: October 14, 1980
    Inventor: Richard N. Richardson