US2416867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined sewage settling and digesting tank having an inclined apron discharging into the tank, an effluent channel, and an inverted v-shaped baffle extending across the tank between the apron and the channel
Assignee: Individual
•
Filing: 1943-09-06
•
Granted: 1947-03-04
•
Expires: 1963-09-06
Abstract
No abstract record available.
Inventors
- 👤 Carroll H Coberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:04
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1658040A
Cited
US828515A
Cited
US872866A
Cited
US1399562A
Cited
US1445439A
Cited
CH106223A
Cited
US1820978A
Cited
US1741915A
Cited
US1757263A
Cited
US1889601A
Cited
US1957168A
Cited
US2000966A
Cited
US2021679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |