Crosscountry ski sticks particularly for the new technique called "Skating"
Patent 4787652 Issued on November 29, 1988. Estimated Expiration Date: 
March 13, 2007. 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.
March 13, 2007. 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 ReferencesSnow disk for a ski staff Ski pole Ski stick handle Patent #: 4288101 InventorApplicationNo. 07/025715 filed on 03/13/1987US Classes:280/824Ring or basketExaminersPrimary: Mitchell, David M.Attorney, Agent or FirmInternational ClassesA63C 11/22 (20060101)A63C 11/24 (20060101) A63C 11/00 (20060101) Foreign Application Priority Data1986-03-17 ITAbstractThe proposed crosscountry ski stick comprises a tube with a handgrip at its top and a snow-wheel at its lower end, fitted with a spike. The areas of contact with the snow are completely asymmetrical, that is without any symmetry axis. The spike lies in a plane which slants outwards with respect to the skier and forms an angle between 15° and 45°. The snow-wheel has a markedly asymmetrical shape i.e. it has no symmetry axis, it has two essentially straight sides which fan out from the tube forming an angle of between 60° and 90°. One of the straight sides is substantially perpendicular to the skier's direction of travel. | |
