Rotary torso exercise apparatus
Patent 4456245 Issued on June 26, 1984. Estimated Expiration Date: 
December 11, 2001. 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.
December 11, 2001. 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 ReferencesSeated weight lifting leg press exercise machine Torsion exercise apparatus Patent #: 4296924 InventorAssigneeApplicationNo. 06/329882 filed on 12/11/1981US Classes:482/136, Rotatably movable482/100, Pivoted user interface element482/139User interface elementExaminersPrimary: Apley, Richard J.Assistant: Browne, William R. Attorney, Agent or FirmInternational ClassesA63B 23/00 (20060101)A63B 23/02 (20060101) AbstractApparatus and method for exercising torso rotation muscles of a person and in which a user's body is supported in a generally upright seated position, upper and lower torso portions are engaged so as to restrict movement of the user's body to rotary movement of the upper torso relative to the lower torso about an axis extending longitudinally of the user's body, and force is imposed to resist such movement. | |
