Golf swing training device
Patent 4071251 Issued on January 31, 1978. Estimated Expiration Date: 
January 31, 1995. 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.
January 31, 1995. 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 1399761 2756056 3482838 3744799 Golf club swing training device Patent #: 3953035 InventorApplicationNo. 05/708992 filed on 07/26/1976US Classes:473/259Closed loopExaminersPrimary: Marlo, George J.Attorney, Agent or FirmInternational ClassA63B 69/36 (20060101)AbstractA golf swing training device having at least one pair of adjustable and flexible guide rails, the guide rails controlling the swing path and swing plane of a golf club swung between them. A clubhead guide may also be incorporated in the device to insure that the clubhead does not top the ball. The flexible guide rail is supported by a spring construction which permits the flexible guide rail to swing away from the other guide rail in response to impacts with the shaft of the golf club. The flexible guide rail includes an audible signaling device and the ends of such rail are positioned at an angle with the plane of the other guide rail to facilitate guiding the golf club into the hitting zone. | |
