Patent US3428325A successfully refreshed from Google Patents.
US3428325A
Expired / Lapsed
US
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Golf swing training device
Assignee: GARLAND P ATKINSON
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Filing: 1966-01-13
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Granted: 1969-02-18
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Expires: 1986-01-13
Abstract
No abstract record available.
Inventors
- 👤 Garland P Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:17
CPC Classifications
A; A63; A63B; A63B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US439297A
Cited
US1471794A
Cited
GB244013A
Cited
GB472237A
Cited
US2447967A
Cited
US2765170A
Cited
US2848234A
Cited
US2979858A
Cited
US3031191A
Cited
US3229980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |