US2634907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for centrifugal deaeration
Assignee: Sharples Corp
•
Filing: 1950-06-24
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Granted: 1953-04-14
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Expires: 1970-06-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:20
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/10; D01D1/103; A; A23; A23L; A23L2/00; A23L2/70; A23L2/76; B; B01; B01D; B01D19/00; B01D19/0021; B01D19/0026; Y; Y10; Y10S; Y10S494/00; Y10S494/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190912004A
Cited
US2300750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |