US2437761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sediment raking mechanism for a settling tank comprising a central support and a hinged body between the support and the raking mechanism
Assignee: Dorr Co
•
Filing: 1946-06-15
•
Granted: 1948-03-16
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Expires: 1966-06-15
Abstract
No abstract record available.
Inventors
- 👤 Charles H Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:12
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/18; B01D21/22; B01D21/24; B01D21/2427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1734044A
Cited
US1907746A
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US2122383A
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US2122384A
Cited
US2064151A
Cited
US2122385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |