Patent US2964237A successfully refreshed from Google Patents.
US2964237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety locking device
Assignee: Individual
•
Filing: 1959-03-16
•
Granted: 1960-12-13
•
Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 William H Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:49
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/24; G07F17/248
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |