US2760437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerged booster pump
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1951-02-24
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Granted: 1956-08-28
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Expires: 1971-02-24
Abstract
No abstract record available.
Inventors
- 👤 Stefano John F Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:31
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/18; F02M37/08; F02M37/20; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D9/00; F04D9/001; F04D9/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL21203C
Cited
US2020956A
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US2368530A
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GB574140A
Cited
US2392128A
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US2418221A
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US2422956A
Cited
US2480435A
Cited
US2660120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |