US2924939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic actuating apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1954-12-20
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Granted: 1960-02-16
•
Expires: 1974-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Svenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:20
CPC Classifications
B; B23; B23D; B23D7/00; B23D7/10; B23Q; B23Q5/00; B23Q5/22; B23Q5/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2005731A
Cited
US2024251A
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US2345973A
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US2605707A
Cited
US2493828A
Cited
US2589204A
Cited
US2497608A
Cited
US2656445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |