Patent US4664388A successfully refreshed from Google Patents.
US4664388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club swing training device
Assignee: CORRECT SWING CORP OF AMERICA
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Filing: 1986-02-21
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Granted: 1987-05-12
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Expires: 2006-02-21
Abstract
Abstract A practice device comprising a ball suspended by a cord from a handle or from the shaft of a golf club for use in a set of drill steps intended to teach a proper golf swing. The control of the suspended ball necessitates concentration upon the utilization of centrifugal forces which are essential to a proper golf club swing.
Inventors
- 👤 Joe B. Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:16
CPC Classifications
A; A63; A63B; A63B67/00; A63B67/20; Y; Y10; Y10S; Y10S273/00; Y10S273/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A device adapted to be removably attached to the shaft of a golf club for use in developing correct swing movements of a golf club comprising: a simulating golf ball means, a cord of a predetermined length for attaching at one end to said golf ball means, and means attached to the other end of said cord for fastening said cord to a golf club, said means comprises a first clamp for gripping the shaft of a golf club at a point between its ends and a second swivel clamp connected to the other end of said cord for detachably connecting said cord to said first clamp, said golf ball means comprising a spherically shaped weight secured to said cord and a pair of hollow interlocking plastic hemispherical parts mounted around said weight.
Claim 2
Independent Claim
133 words
A device adapted to be removably attached to the shaft of a golf club for use in developing correct swing movements of a golf club comprising: a simulating golf ball means, a cord of a predetermined length for attaching at one end to said golf ball means, and means attached to the other end of said cord for fastening said cord to a golf club, said means comprises a first clamp for gripping the shaft of a golf club at a point between its ends and a second swivel clamp connected to the other end of said cord for detachably connecting said cord to said first clamp, said golf ball means comprising a spherically shaped weight secured to said cord and a pair of hollow interlocking plastic hemispherical parts mounted around said weight.
Claim 3
Dependent Claim
17 words
The device set forth in claim 1 in further combination with: a golf club having a handle.
Claim 4
Dependent Claim
22 words
The device set forth in claim 2 wherein: said first clamp grips a shaft of said golf club immediately below its handle.
References Cited (Backward Citations)
US1930342A
Cited
GB472237A
Cited
US3229980A
Cited
US3428325A
Cited
US3466049A
Cited
GB2148130A
Cited
US4598911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |