US3812032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating domestic and industrial liquid wastes
Assignee: Individual
•
Filing: 1971-08-06
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Granted: 1974-05-21
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Expires: 1991-08-06
Abstract
Abstract A PROCESS FOR TREATING DOMESTIC, MUNICIPAL OR INDUSTRIAL LIQUID WASTE TO REDUCE B.O.D. OF THE WASTE COMPRISING ADDING A SUFFICIENT AMOUNT OF AN ACID FORMULA AND A SUFFICIENT AMOUNT OF ALKALINE FORMULA TO SAID WASTE TO THEREBY CAUSE EVOLUTION OF HEAT AND CUASE FLOCCULATION OF SOLIDS, AND SEPARATING THE RESULTING SOLIDS FROM THE LIQUID. THE NOVEL ACID FORMULA AND ALKALINE FORMULA ARE DISCLOSED. LIQUID WASTES TREATED BY THE PROCESS OF THIS INVENTION CAN BE SAFELY DISCHARGED INTO RIVERS, LAKERS AND STREAMS. IN ADDITION THE PROCESS IS EXTREMELY EFFICIENT SINCE FLOCCULATION IS RAPID, AND IN MANY INSTANCES STARTS IMMEDIATELY UPON THE ADDITION OF EITHER FORMULA TO THE LIQUID WASTE.
Inventors
- 👤 G Chappeil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:13
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/66; C02F1/52; C02F1/5236
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |