Ski stiffened in torsion by a bellows-like member
Patent 4647061 Issued on March 3, 1987. Estimated Expiration Date: 
November 21, 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.
November 21, 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 3096530 3761106 InventorApplicationNo. 06/800501 filed on 11/21/1985US Classes:280/602With camber or flexibility controlExaminersPrimary: Mitchell, David M.Attorney, Agent or FirmInternational ClassesA63C 5/06 (20060101)A63C 5/07 (20060101) AbstractA ski that is stiff in torsion and is flexible in the vertical direction. The ski body that is relatively weak and flexible both in beam and in torsion, having a ski binding area in between its ends for affixation of a user's ski boot, providing forward and rear top surface portions. At least one bellows members is rigidly secured atop said ski body, it may be on said forward surface portion, or on said rear surface portion, or on both surface portions. | |
