Patent US1930619A successfully refreshed from Google Patents.
Patent US3485362A successfully refreshed from Google Patents.
US3485362A
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Device for filtering,separating or agitating a liquid mixture composed of two phases having different specific gravities
Assignee: Reactor Centrum Nederland
•
Filing: 1965-01-19
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Granted: 1969-12-23
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Expires: 1985-01-19
Abstract
No abstract record available.
Inventors
- 👤 Adriaan Spruyt
- 👤 Joseph L Matteman
- 👤 Harmen Bottinga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:35
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/24; B; B01; B01D; B01D35/00; B04; B04C; B04C9/00; G21C1/06; G21C1/22; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3347372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |