Patent US3716217A successfully refreshed from Google Patents.
US3716217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer capable of lifting and lowering boats or the like
Assignee: Usui Kokusai Sangyo Kaisha Ltd
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Filing: 1970-12-01
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Granted: 1973-02-13
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Expires: 1990-12-01
Abstract
Abstract A trailer capable of lifting and lowering boats or the like which includes a trailer body of the type known per se having a winch device mounted thereon, and a foldable crane assembly pivotally connected to the rear end of the trailer body, whereby the crane assembly can be moved between a raised or operative position and a folded or inoperative position.
Inventors
- 👤 M Watabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:01
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P1/00; B60P1/54; B60P1/5404; B60P1/5423; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
185 words
A trailer capable of lifting and lowering boats or the like, comprising a trailer body; a crane assembly connected to the rear end of said trailer body for lifting and lowering boats or the like, said crane assembly comprising an inverted U-shaped frame including a pair of support rods integrally interconnected at the upper ends thereof by a transverse bridge member, said support rods being connected at the lower ends thereof to said trailer body for pivotal movement in a vertical plane, and a single operating rod connected to said transverse bridge member centrally thereof for pivotal movement in a vertical plane, said crane assembly thus being foldable to a position wherein said support rods are in a plane common to the horizontal plane of said trailer body and said operating rod is also in a horizontal plane; a winch device mounted on said trailer body in the forward end portion thereof, and a rope wound on said winch device and having a free end provided with hook means, said rope being extended from said winch device along said operating rod of said crane assembly.
Claim 2
Dependent Claim
185 words
A trailer capable of lifting and lowering boats or the like, comprising a trailer body; a crane assembly connected to the rear end of said trailer body for lifting and lowering boats or the like, said crane assembly comprising an inverted U-shaped frame including a pair of support rods integrally interconnected at the upper ends thereof by a transverse bridge member, said support rods being connected at the lower ends thereof to said trailer body for pivotal movement in a vertical plane, and a single operating rod connected to said transverse bridge member centrally thereof for pivotal movement in a vertical plane, said crane assembly thus being foldable to a position wherein said support rods are in a plane common to the horizontal plane of said trailer body and said operating rod is also in a horizontal plane; a winch device mounted on said trailer body in the forward end portion thereof, and a rope wound on said winch device and having a free end provided with hook means, said rope being extended from said winch device along said operating rod of said crane assembly.
Claim 3
Dependent Claim
185 words
A trailer capable of lifting and lowering boats or the like, comprising a trailer body; a crane assembly connected to the rear end of said trailer body for lifting and lowering boats or the like, said crane assembly comprising an inverted U-shaped frame including a pair of support rods integrally interconnected at the upper ends thereof by a transverse bridge member, said support rods being connected at the lower ends thereof to said trailer body for pivotal movement in a vertical plane, and a single operating rod connected to said transverse bridge member centrally thereof for pivotal movement in a vertical plane, said crane assembly thus being foldable to a position wherein said support rods are in a plane common to the horizontal plane of said trailer body and said operating rod is also in a horizontal plane; a winch device mounted on said trailer body in the forward end portion thereof, and a rope wound on said winch device and having a free end provided with hook means, said rope being extended from said winch device along said operating rod of said crane assembly.
Claim 4
Dependent Claim
185 words
A trailer capable of lifting and lowering boats or the like, comprising a trailer body; a crane assembly connected to the rear end of said trailer body for lifting and lowering boats or the like, said crane assembly comprising an inverted U-shaped frame including a pair of support rods integrally interconnected at the upper ends thereof by a transverse bridge member, said support rods being connected at the lower ends thereof to said trailer body for pivotal movement in a vertical plane, and a single operating rod connected to said transverse bridge member centrally thereof for pivotal movement in a vertical plane, said crane assembly thus being foldable to a position wherein said support rods are in a plane common to the horizontal plane of said trailer body and said operating rod is also in a horizontal plane; a winch device mounted on said trailer body in the forward end portion thereof, and a rope wound on said winch device and having a free end provided with hook means, said rope being extended from said winch device along said operating rod of said crane assembly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |