US2912224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist control mechanism
Assignee: Individual
•
Filing: 1954-06-10
•
Granted: 1959-11-10
•
Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Henry H Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:49
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/02; B66B1/06; B66B1/12; B66B1/34; B66B1/46; B66B1/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US808273A
Cited
US1262594A
Cited
US1558955A
Cited
US1808454A
Cited
US1877171A
Cited
US2565779A
Cited
US2656027A
Cited
US2633755A
Cited
US2759494A
Cited
US2677971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |