Patent US2532792A successfully refreshed from Google Patents.
US2532792A
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Process for the centrifugal separation of sludge-containing liquids
Assignee: Alfa Laval Holdings Amsterdam AB
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Filing: 1946-04-13
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Granted: 1950-12-05
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Expires: 1966-04-13
Abstract
No abstract record available.
Inventors
- 👤 Svensjo Nils Edvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:57
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/02; B04B1/00; B04B1/10; B04B1/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2506; Y10T137/2509
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2184598A
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US911652A
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US1232104A
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US1469522A
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GB307933A
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GB428188A
Cited
DE677969C
Cited
US2339991A
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US2392026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |