Patent US2694043A successfully refreshed from Google Patents.
US2694043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewage treatment
Assignee: Individual
•
Filing: 1953-05-07
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Granted: 1954-11-09
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Expires: 1973-05-07
Abstract
No abstract record available.
Inventors
- 👤 Harry N Jenks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:50
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/04; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A SYSTEM FOR THE TREATMENT OF POLLUTED LIQUIDS, WHICH COMPRISES A PRIMARY AND A SECONDARY SETTLER, A VORTICAL HOLDING-MIXING STATION, A COLLOIDER BED, MEANS FOR SUPPLYING POLLUTED LIQUID TO THE PRIMARY SETTLER, MEANS FOR PASSING EFFLUENT FROM THAT SETTLER TANGENTIALLY TO THE HOLDING-MIXING STATION, MEANS FOR PASSING LIQUID FROM THAT STATION TO THE BED AND RETURNING IT TO THAT STATION, MEANS FOR PASSING OXIDIZED LIQUID FROM A REGION IN THE STATION BELOW THE LIQUID LEVEL THEREIN TO THE SECONDARY
Claim 2
Independent Claim
79 words
A SYSTEM FOR THE TREATMENT OF POLLUTED LIQUIDS, WHICH COMPRISES A PRIMARY AND A SECONDARY SETTLER, A VORTICAL HOLDING-MIXING STATION, A COLLOIDER BED, MEANS FOR SUPPLYING POLLUTED LIQUID TO THE PRIMARY SETTLER, MEANS FOR PASSING EFFLUENT FROM THAT SETTLER TANGENTIALLY TO THE HOLDING-MIXING STATION, MEANS FOR PASSING LIQUID FROM THAT STATION TO THE BED AND RETURNING IT TO THAT STATION, MEANS FOR PASSING OXIDIZED LIQUID FROM A REGION IN THE STATION BELOW THE LIQUID LEVEL THEREIN TO THE SECONDARY
References Cited (Backward Citations)
US2388795A
Cited
US2419693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |