US3997159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tennis training device
Assignee: Individual
•
Filing: 1972-02-01
•
Granted: 1976-12-14
•
Expires: 1992-02-01
Abstract
Abstract A device for use in learning, practicing, and perfecting a tennis serve comprising a flexible, substantially non-elastic tether and a weighted end portion is described. The tether is grasped at one end and swung forward using the motion associated with the exaggerated throwing of a baseball. The weighted end of the device forces the smooth, continuous follow-through motion required in a tennis serve.
Inventors
- 👤 Farouk S. Malhas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:04
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/38; A63B69/385
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A tennis serve training device comprising a weight member having a flexible tether secured thereto and terminating in grip means for being gripped in the hand; said tether extending from said grip means to said weight member and the overall length of said weight member and tether being predetermined as an overall length of a tennis racket; said tether being flexible in any direction and longer than said weight member so as to bend substantially in response to a continuous swinging motion of the device in a simulated tennis serve to indicate improper serve motion by the user; said weight member being tubular, said tether being secured thereto in axial alignment therewith, and said weight member being configured to hold one or more tennis balls in axial alignment with said tether.
Claim 2
Dependent Claim
131 words
A tennis serve training device comprising a weight member having a flexible tether secured thereto and terminating in grip means for being gripped in the hand; said tether extending from said grip means to said weight member and the overall length of said weight member and tether being predetermined as an overall length of a tennis racket; said tether being flexible in any direction and longer than said weight member so as to bend substantially in response to a continuous swinging motion of the device in a simulated tennis serve to indicate improper serve motion by the user; said weight member being tubular, said tether being secured thereto in axial alignment therewith, and said weight member being configured to hold one or more tennis balls in axial alignment with said tether.
Claim 3
Dependent Claim
20 words
A tennis serve training device as set forth in claim 1, including means for predetermining the length of said tether.
Claim 4
Dependent Claim
24 words
A tennis serve training device as set forth in claim 2, including at least one identical device usable in plurality with said aforementioned device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |