US2755939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic crane
Assignee: Individual
•
Filing: 1952-04-14
•
Granted: 1956-07-24
•
Expires: 1972-04-14
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Rush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:40
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C23/00; B66C23/62; B66C23/64; B66C23/68; B66C2700/00; B66C2700/06; B66C2700/062; B66C2700/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1385322A
Cited
US1371344A
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US1688664A
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US2109388A
Cited
US2082017A
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US2389872A
Cited
US2621803A
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US2588928A
Cited
US2599991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |