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Class Information
Number: 405/1
Name: Hydraulic and earth engineering > Marine vessel portage, launching, or removing
Description: Method or apparatus (a) for introducing a vessel into or removing it from a body of water or for transporting the vessel across a body of land by means resting on or built into the earth, (b) for constructing an artificial vessel basin which is capable of having all the water removed therefrom, or (c) for subcombinations peculiar to such basins which are not provided for elsewhere.

Sub-classes under this class:

Class Number Class Name Patents
405/4 Dry dock 40
405/3 Lifting 244
405/2 Rail mounted carrier 27

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
5090841 Boat lift Feb. 25, 1992
5078541 Method for launching and retrieving a boat Jan. 7, 1992
5067428 Portable boat dock Nov. 26, 1991
5037237 Boat hull protector and method of handling a boat Aug. 6, 1991
4972791 Boat protection device Nov. 27, 1990
4803942 Boat, keel and hull protector Feb. 14, 1989
4786210 Arctic production/terminal facility Nov. 22, 1988
4714375 Seaplane and dock lift Dec. 22, 1987
4696250 Portable boat ramp for small watercraft Sep. 29, 1987
4678366 Boat lift Jul. 7, 1987
4662780 Method for docking of a floating structure May. 5, 1987
4653706 Emergency aircaft landing device Mar. 31, 1987
4601606 Apparatus for loading and storing boats Jul. 22, 1986
H3 Original method of drydocking ships Dec. 3, 1985
4549835 Docking apparatus for ships Oct. 29, 1985
4548152 Maritime transportation and distribution system and method for bulk raw materials Oct. 22, 1985
4505619 Combined boat trailer and portable dock apparatus Mar. 19, 1985
4482268 Boat lift Nov. 13, 1984
4361105 Barge-carrying vessel Nov. 30, 1982
4337704 Turbulent-water way Jul. 6, 1982
4300854 Movable float system for boat launching ramps Nov. 17, 1981
4260282 Portable boat ramp Apr. 7, 1981
4244819 Floating anti-pollution barrier and method for using the same Jan. 13, 1981
4227828 Building berth vessel support and handling system Oct. 14, 1980
4167357 Rapid construction of deep international ports, at shallow seashores, without dredging Sep. 11, 1979
4099279 Boat launching and recovery guide for boat trailers Jul. 11, 1978
4074384 River ramp for hovercraft Feb. 21, 1978
3990258 Launching means for surface effect ships Nov. 9, 1976

1 2

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