Boat lift
Patent 4764081 Issued on August 16, 1988. Estimated Expiration Date: 
August 16, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 16, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 555018 2294864 2632900 2829781 3216388 3284052 3690282 InventorApplicationNo. 06/526347 filed on 08/24/1983US Classes:414/678, LAND VEHICLE OR BOAT TILTING AND LIFTING DEVICES114/44, VESSEL RAISING AND DOCKING405/3, Lifting414/756, Article reoriented by flexible sling meansD34/28CONVEYING, LIFTING, OR TRANSFERRING ARTICLEExaminersPrimary: Basinger, Sherman D.Attorney, Agent or FirmInternational ClassesB63C 3/00 (20060101)B63C 3/06 (20060101) AbstractA boat lift includes a pair of straps or ropes which are secured at one end at intermediate elevations along a pair of horizontally spaced upright standards. The straps extend downwardly beneath a boat and then upwardly where they are secured about pulleys mounted on a horizontal shaft journaled at the top of the standards. Rotation of the shaft by a handwheel will shorten the straps and lift and completely overturn the boat. | |
