Patent US3401795A successfully refreshed from Google Patents.
US3401795A
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US
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Fluidized bed and electrostatic field type separator
Assignee: Machines Electrostatiques SA
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Filing: 1965-03-17
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Granted: 1968-09-17
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Expires: 1985-03-17
Abstract
No abstract record available.
Inventors
- 👤 Tanveron Pierre Jean Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:57
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/005; B01J8/18; B01J8/24; B01J8/42; B03; B03C; B03C7/00; B03C7/02; B03C7/023; B03C7/026; B03C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US880891A
Cited
US2116613A
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US2300324A
Cited
US2889042A
Cited
US2899055A
Cited
SU143744A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |