US3918720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Putting trainer
Assignee: Individual
•
Filing: 1974-03-22
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Granted: 1975-11-11
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Expires: 1994-03-22
Abstract
Abstract Apparatus for practicing golf ball putting includes two golf ball members mounted at opposite ends of a rigid connecting rod. The length of the rod is such that each of the ball members may be struck simultaneously by the striking face of a putter, and only then will the ball members move forwardly in a straight line.
Inventors
- 👤 Ambrose L Gordos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:47
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3676; A63B69/3688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
In combination with a golf putter embodying a head that has an elongate striking surface of a first length, a putting training device for use with said putter, which putting training device includes: A. A PAIR OF LATERALLY SPACED SPHERES THAT ARE SUBSTANTIALLY THE SAME SIZE, WEIGHT AND EXTERIOR APPEARANCE AS A GOLF BALL; AND B. A RIGID ELONGATE MEMBER WHICH EXTENDS BETWEEN SAID SPHERES AND IS ALIGNED ON THE DIAMETER THEREOF, SAID MEMBER HAVING A TRANSVERSE CROSS SECTION LESS THAN THAT OF SAID SPHERES, WHICH MEMBER IS OF SUCH LENGTH THAT THE OVERALL LENGTH OF SAID DEVICE IS NOT GREATER THAN SAID FIRST LENGTH, WITH SAID TRAINING DEVICE ROLLING IN A STRAIGHT LINE ON A SURFACE ON WHICH IT IS SUPPORTED ONLY WHEN BOTH OF SAID SPHERES ARE CONCURRENTLY CONTACTED BY SAID STRIKING SURFACE.
Claim 2
Dependent Claim
135 words
In combination with a golf putter embodying a head that has an elongate striking surface of a first length, a putting training device for use with said putter, which putting training device includes: A. A PAIR OF LATERALLY SPACED SPHERES THAT ARE SUBSTANTIALLY THE SAME SIZE, WEIGHT AND EXTERIOR APPEARANCE AS A GOLF BALL; AND B. A RIGID ELONGATE MEMBER WHICH EXTENDS BETWEEN SAID SPHERES AND IS ALIGNED ON THE DIAMETER THEREOF, SAID MEMBER HAVING A TRANSVERSE CROSS SECTION LESS THAN THAT OF SAID SPHERES, WHICH MEMBER IS OF SUCH LENGTH THAT THE OVERALL LENGTH OF SAID DEVICE IS NOT GREATER THAN SAID FIRST LENGTH, WITH SAID TRAINING DEVICE ROLLING IN A STRAIGHT LINE ON A SURFACE ON WHICH IT IS SUPPORTED ONLY WHEN BOTH OF SAID SPHERES ARE CONCURRENTLY CONTACTED BY SAID STRIKING SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |