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US2921646A
Expired / Lapsed
US
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Moisture separator
Assignee: Fairchild Engine and Airplane Corp
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Filing: 1957-01-31
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Granted: 1960-01-19
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 David M Poole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:16
CPC Classifications
B; B04; B04C; B04C3/00; B01; B01D; B01D45/00; B01D45/12; Y; Y10; Y10S; Y10S55/00; Y10S55/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA468487A
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US713930A
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US2487633A
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US2569909A
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US2648397A
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US2664966A
Cited
GB711304A
Cited
US2661076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |