Exercise device
Patent 4579337 Issued on April 1, 1986. Estimated Expiration Date: 
December 22, 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.
December 22, 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 2640696 2796269 3351363 3413022 InventorAssigneeApplicationNo. 06/564383 filed on 12/22/1983US Classes:482/107, Having securing member (e.g., locking collar, etc.) for retaining weight on bar403/259Between rod shoulder and terminal nutExaminersPrimary: Apley, Richard J.Assistant: Bahr, Robert Attorney, Agent or FirmInternational ClassesA63B 21/06 (20060101)A63B 21/072 (20060101) AbstractA barbell-like exercise device having an elongated bar of the type adapted to carry interchangeable weights. The bar is provided with grooved end portions and spaced apart radially enlarged protuberances against which the weights are held by clamping collars. The clamping collars include threadably interconnected cylindrical members which carry radially movable locking members which are adapted to be brought into locking engagement with the grooves in the bar upon relative rotation of the cylindrical members. | |
