US2598606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous rotary drum thickener
Assignee: Oliver United Filters Inc
•
Filing: 1948-10-29
•
Granted: 1952-05-27
•
Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Clinton S Robison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:00
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US915436A
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US1059327A
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US1198880A
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US1212978A
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US1577584A
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US2115211A
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US2102780A
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US2027652A
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US2285649A
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US2352330A
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US2499412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |