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US3477565A
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US
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Method for the simultaneous concentration of constituents of solid mixtures in liquid suspension
Assignee: BASF Catalysts LLC
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Filing: 1967-05-22
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Granted: 1969-11-11
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Expires: 1987-05-22
Abstract
No abstract record available.
Inventors
- 👤 Tom A Cecil
- 👤 Harold J Gerstenmier
- 👤 Herbert R Hamill
- 👤 Victor Puskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:51
CPC Classifications
B; B03; B03D; B03D3/00; B03D3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1324958A
Cited
US1233713A
Cited
US1402740A
Cited
US1774510A
Cited
US2981630A
Cited
US2999586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |