Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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US Patent 4071251 - Golf swing training device
US Patent Issued on January 31, 1978
Estimated Patent Expiration Date:
January 31, 1995Estimated 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.
Estimated Patent Expiration Date:
January 31, 1995Estimated 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.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. | InventorApplicationNo. 05/708992 filed on 07/26/1976US Classes:473/259Closed loopExaminersPrimary: Marlo, George J.Attorney, Agent or FirmUS Patent References1399761, 2756056, 3482838, 3744799, 3953035Golf club swing training deviceIssued on: 04/27/1976 Inventor: Beckisk International ClassA63B 69/36 (20060101) |
