US3259569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flocculation of sewage having controlled solids concentrations
Assignee: Individual
•
Filing: 1963-10-08
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Granted: 1966-07-05
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Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 Charles P Priesing
- 👤 Mogelnicki Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:49
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5263; C02F1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A PROCESS FOR FLOCCULATING A DILUTE AQUEOUS SUSPENSION OF SEWAGE SOLIDS WHICH COMPRISES THE STEPS OF TREATING THE SUSPENSION WITH A SUFFICIENT AMOUNT OF A SYNTHETIC ORGANIC POLYMERIC FLOCCULANT FOR THE SUSPENSION SOLIDS TO CONDITION THE SOLIDS FOR FLOCCULATION AND FLOCCULATING THE TREATED SUSPENSION, THE IMPROVEMENT WHICH CONSISTS IN BLENDING INTO THE SUSPENSION, PRIOR TO THE FLOCCULATING STEP, A SUFFICIENT AMOUNT OF SETTLED SEWAGE SOLIDS TO INCREASE THE SOLIDS CONTENT OF THE SUSPENSION BY AT LEAST 200 PERCENT BY WEIGHT OF THE INITIAL SUSPENDED SOLIDS CONTENT OF THE SUSPENSION AND TO A LEVEL WITHIN THE RANGE FROM ABOUT 200 TO ABOUT 10,000 PARTS OF SOLIDS PER MILLION PARTS BY WEIGHT OF THE BLENDED SYSTEM.
Claim 2
Dependent Claim
115 words
IN A PROCESS FOR FLOCCULATING A DILUTE AQUEOUS SUSPENSION OF SEWAGE SOLIDS WHICH COMPRISES THE STEPS OF TREATING THE SUSPENSION WITH A SUFFICIENT AMOUNT OF A SYNTHETIC ORGANIC POLYMERIC FLOCCULANT FOR THE SUSPENSION SOLIDS TO CONDITION THE SOLIDS FOR FLOCCULATION AND FLOCCULATING THE TREATED SUSPENSION, THE IMPROVEMENT WHICH CONSISTS IN BLENDING INTO THE SUSPENSION, PRIOR TO THE FLOCCULATING STEP, A SUFFICIENT AMOUNT OF SETTLED SEWAGE SOLIDS TO INCREASE THE SOLIDS CONTENT OF THE SUSPENSION BY AT LEAST 200 PERCENT BY WEIGHT OF THE INITIAL SUSPENDED SOLIDS CONTENT OF THE SUSPENSION AND TO A LEVEL WITHIN THE RANGE FROM ABOUT 200 TO ABOUT 10,000 PARTS OF SOLIDS PER MILLION PARTS BY WEIGHT OF THE BLENDED SYSTEM.
References Cited (Backward Citations)
US3142638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |