US2771678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golfing aids
Assignee: Individual
•
Filing: 1952-02-15
•
Granted: 1956-11-27
•
Expires: 1972-02-15
Abstract
No abstract record available.
Inventors
- 👤 Sr Fred C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:12
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3623; A63B69/3632
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189907546A
Cited
US962596A
Cited
US1091186A
Cited
US1331499A
Cited
US1488900A
Cited
US1433150A
Cited
GB196429A
Cited
US1604696A
Cited
GB472237A
Cited
US2135648A
Cited
US2574599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |