Patent US692394A successfully refreshed from Google Patents.
Patent US2790551A successfully refreshed from Google Patents.
US2790551A
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Continuous horizontal sedimentation process and apparatus for carrying out the same
Assignee: Individual
•
Filing: 1953-01-27
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Granted: 1957-04-30
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Eder Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:51
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0253; B01D11/0257; B01D11/028; B01D11/0284; B01D21/00; B01D2011/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021009A
Cited
US1916035A
Cited
DE465154C
Cited
US1914039A
Cited
US1957182A
Cited
FR757461A
Cited
US2136281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |