US3004494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine driven pump inducer
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1957-11-14
•
Granted: 1961-10-17
•
Expires: 1977-11-14
Abstract
No abstract record available.
Inventors
- 👤 Marshall J Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:54
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2733662A
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US2752858A
Cited
US2814928A
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US2748711A
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US2781831A
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US2889780A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |