Opposed Hull Skids Forming Longitudinal Channel Patents (Class D12/310)
Laterally stepped (Class D12/311)
Channel divided by keel or keel rib (Class D12/312)
  • Combined boat hull and top thereof
    Patent number: D264573
    Type: Grant
    Filed: November 21, 1978
    Date of Patent: May 25, 1982
    Assignee: Vivian Industrial Plastics, Inc.
    Inventor: Roy A. Rogers
  • Boat
    Patent number: D266160
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: September 14, 1982
    Inventors: Urban W. Simon, Gene L. Simon
  • Maritime maintenance vessel or the like
    Patent number: D268106
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: March 1, 1983
    Inventors: Jerrold C. Feiger, Ben Braunstein
  • Pedal-boat
    Patent number: D280498
    Type: Grant
    Filed: February 7, 1983
    Date of Patent: September 10, 1985
    Inventor: Clement Lacasse
  • Boat hull
    Patent number: D286870
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: November 25, 1986
    Inventor: Richard Fairchild
  • Catamaran type boat
    Patent number: D290948
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: July 21, 1987
    Inventor: Peter C. Hledin
  • Exterior surface of a boat hull
    Patent number: D301573
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: June 13, 1989
    Inventor: Stephen M. Fuller