Patent DE730473C successfully refreshed from Google Patents.
Patent US2160086A successfully refreshed from Google Patents.
Patent US4606813A successfully refreshed from Google Patents.
Patent US3054747A successfully refreshed from Google Patents.
US3054747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating non-surface active ionic materials from solution
Assignee: Radiation Applications Inc
•
Filing: 1960-07-22
•
Granted: 1962-09-18
•
Expires: 1980-07-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Elmer L Gaden
- 👤 Robert W Schnepf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:14
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
THE PROCESS FOR THE SEPARATION NON-SURFACE ACTIVE IONIC MATERIALS FROM SOLUTION WHICH COMPRISES COMBINING AN AQUEOUS MEDIUM CONTAINING A SOLUBLE ALKALINE EARTH METAL ION IN AN AMOUNT OF ABOUT 50 TO 200 P.P., WITH A FOAMING AGENT WHICH IS SURFACE ACTIVE TO PRODUCE A SOLUBLE FACE ACTIVE COMPLEX OF THE FOAMING AGENT AND THE ALKALINE EARTH METAL ION THEREBY FOAMING A SINGLE LIQUID PHASE HAVING COMPOSITION GRADIENTS SUCH THAT SURFACE LAYERS ARE RELATIVELY RICH IN SAID PRODUCT, PASSING A GASEOUS MATERIAL THROUGH THE AQUEOUS MEDIUM AND THEREBY CAUSING IT TO FOAM AS A CONTINOUS STREAM FROM THE MAIN BODY OF AQUEOUS MEDIUM THROUGH A TRANSFER ZONE AND THEREBY ESSECTING A SEPARATION OF FOAM FROM THE RESILIENT AQUEOUS MEDIUM.
References Cited (Backward Citations)
US2820759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |