US2695679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil deaeration
Assignee: United Aircraft Products Inc
•
Filing: 1951-04-16
•
Granted: 1954-11-30
•
Expires: 1971-04-16
Abstract
No abstract record available.
Inventors
- 👤 Allan C Hoffman
- 👤 Walter H Geddes
- 👤 James D Olcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:11
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/002; F16N39/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1452253A
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US1710178A
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US1786790A
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GB376480A
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US2211171A
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FR880915A
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US2354856A
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US2589733A
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US2420115A
Cited
GB587012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |