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Patent US2908504A successfully refreshed from Google Patents.
US2908504A
Expired / Lapsed
US
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Golf swing training aid
Assignee: Individual
•
Filing: 1958-11-21
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Granted: 1959-10-13
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Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 William D Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:35
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3623; A63B57/00; A63B57/10; A63B69/3621; A63B71/00; A63B71/02; A63B71/023; A63B2071/024; A63B71/06; A63B2071/0694; A63B69/3661
Claims Analysis
Total Claims: 0
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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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |