US3485362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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
•
Granted: 1969-12-23
•
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 05:48
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2419275A
Cited
US2754968A
Cited
US2649963A
Cited
US2981413A
Cited
DE972885C
Cited
US3251468A
Cited
US2794832A
Cited
US3130157A
Cited
US3101313A
Cited
US3166496A
Cited
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 |