Weight lifting grips
Patent 4487412 Issued on December 11, 1984. Estimated Expiration Date: 
July 11, 2003. 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.
July 11, 2003. 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 2273416 2877465 3520539 3541990 3554554 Traction arrangement for use by a sail surfer or water skier Patent #: 4235182 InventorApplicationNo. 06/512229 filed on 07/11/1983US Classes:482/139, User interface element482/106Handheld bar with weight at each end (e.g., barbell, dumbbell, etc.) or component thereofExaminersPrimary: Hafer, Robert A.Assistant: Coppens, Chris Attorney, Agent or FirmInternational ClassesA63B 23/035 (20060101)A63B 23/12 (20060101) AbstractA device to increase the user's gripping power and weight training level on isometric weight training equipment is disclosed. An inverted U-shaped cradle is placed over the bar of the weight equipment and the user's hand grips the outside surface of the grip. An endless belt attached to the bottom edge of the grip through a slot passes behind the user's wrist to provide reinforcement and increase the hand and finger's grip. The interior and exterior cradle surfaces may be covered with a friction enhancing material which also cushions the contact surfaces of the user's hands.Other References
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