Leg exerciser
Patent 4986536 Issued on January 22, 1991. Estimated Expiration Date: 
December 20, 2009. 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 20, 2009. 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 3322425 3370850 3679107 Barbell storage and exercise rack Weightlifting exercise bar U-leg bar exercising device Patent #: 4765612 InventorApplicationNo. 453691 filed on 12/20/1989US Classes:482/106, Handheld bar with weight at each end (e.g., barbell, dumbbell, etc.) or component thereof224/266, Yoke-type carrier482/105Weight worn on body of userExaminersPrimary: Bahr, RobertAttorney, Agent or FirmForeign Patent References
International ClassA63B 021/072AbstractA leg trainer device for use in carrying out deep knee bends and standing calf exercises, which trainer may be used in conjunction with a means to enhance balance during periods of use.The device includes a main body formed from a plurality of frame members, and a pair of spaced shoulder supports which are attached to said main body. Angularly disposed weight holding members are attached to frame members of the main body.Other References
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