US2631744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crowd unit for horizontal loaders
Assignee: QUICK WAY TRUCK SHOVEL CO
•
Filing: 1948-01-17
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Granted: 1953-03-17
•
Expires: 1968-01-17
Abstract
No abstract record available.
Inventors
- 👤 Luke E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:49
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/283; E02F3/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1551466A
Cited
US1501795A
Cited
US1796889A
Cited
FR696060A
Cited
US1937016A
Cited
US2394830A
Cited
US2441581A
Cited
US2478643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |