Thoracic weightlifting bench
Patent 5039090 Issued on August 13, 1991. Estimated Expiration Date: 
August 27, 2010. 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.
August 27, 2010. 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 1904039 Device for alining the spine Bench construction for use in weight lifting Convertible wind load exercise device Exercise apparatus Patent #: 4915377 InventorApplicationNo. 572436 filed on 08/27/1990US Classes:482/104Barbell supportExaminersPrimary: Apley, Richard J.Assistant: Horowitz, Karen G. Attorney, Agent or FirmInternational ClassesA63B 021/078A63B 021/00 AbstractA weightlifting bench for performing the bench press exercise comprising a substantially longitudinally arcuate curve for conforming to the thoracic region of a weightlifter's back. The arcuate curve has a chord with a length of 8.5 inches defined by the end points of the arcuate curve. The arcuate curve begins to ascend and increases to 1/8, 3/16, 1/4, 7/16 and 17/32, inches respectively, measured form points on the arcuate curve to evenly spaced points on the chord. When the arcuate curve passes its midpoint, the distance from the curve to the chord decreases to 1/2, 7/16, 3/16, 1/8 inches, respectively, measured at evenly spaced points along the chord. | |
