US2441200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for separating finely divided solid material from a fluid suspension thereof
Assignee: Anderson Co V D
•
Filing: 1946-09-28
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Granted: 1948-05-11
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Expires: 1966-09-28
Abstract
No abstract record available.
Inventors
- 👤 Louis F Langhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:00
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/108; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0253; B01D11/0257; B01D21/00; B01D21/0018; B01D21/0039; B01D21/0051; B01D21/02; B01D21/24; B01D21/2427; B01D21/245; B01D21/2461; B23; B23Q; B23Q16/00; B23Q16/006; C11B1/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1245366A
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US1359162A
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US1560796A
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US1943367A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |