US2589172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level luffing crane
Assignee: Individual
•
Filing: 1947-05-26
•
Granted: 1952-03-11
•
Expires: 1967-05-26
Abstract
No abstract record available.
Inventors
- 👤 George P Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:08
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/06; B66C23/08; B66C23/10; B66C2700/00; B66C2700/03; B66C2700/0307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US523705A
Cited
US1004451A
Cited
US1328793A
Cited
GB225033A
Cited
US1950057A
Cited
US2221359A
Cited
US2401238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |