US2878889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for de-aeration of liquids
Assignee: Napier Turbochargers Ltd
•
Filing: 1955-04-19
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Granted: 1959-03-24
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Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 Gilbert Ronald Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:41
CPC Classifications
B; B04; B04C; B04C3/00; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052; B01D19/0057; F; F02; F02M; F02M55/00; F02M55/007; F16; F16K; F16K24/00; F16K24/04; F16K24/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262617A
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US2215756A
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GB497473A
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US2334220A
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US2590754A
Cited
US2494427A
Cited
US2599699A
Cited
US2556319A
Cited
US2627907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |