US2807472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf swing trainer
Assignee: Individual
•
Filing: 1956-12-03
•
Granted: 1957-09-24
•
Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 Verne J Hatfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:16
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3621; A63B2225/00; A63B2225/09; A63B69/0073; A63B69/0075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1633527A
Cited
US1960787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |