US2662483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary vane pump
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1948-09-25
•
Granted: 1953-12-15
•
Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Smith
- 👤 John F Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:17
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0023; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1580712A
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US1675079A
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US1743585A
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US1943561A
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US2055296A
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US2255785A
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US2326803A
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US2460047A
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US2491670A
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US2417349A
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US2455303A
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US2470987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |