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US2942733A
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Separators for liquids having different specific gravities
Assignee: COASTGUARD SEPARATORS Ltd
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Filing: 1956-01-18
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Granted: 1960-06-28
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Expires: 1976-01-18
Abstract
No abstract record available.
Inventors
- 👤 Thompson Herbert Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US757448A
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US996553A
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US1702612A
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US1873597A
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US2036730A
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US2214248A
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US2315017A
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US2376555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |