US2769780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precipitation process
Assignee: Individual
•
Filing: 1954-12-22
•
Granted: 1956-11-06
•
Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Warren E Clifford
- 👤 Raymond E Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:21
CPC Classifications
C; C01; C01D; C01D17/00; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911; Y10S210/912
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
THE PROCESS OF REMOVING FISSIONPRODUCT VLAUES SELECTED FROM THE GROUP CONSISTING OF CESIUM VALUES AND STRONTIUM VALUES FROM AQUEOUS SOLUTIONS COMPRISING ADJUSTING THE PH TO A VALUE BETWEEN 8 AND 11, ADDITN ALKALIFERROCYANIDE TO SAID SOLUTION, ADDING A WATER-SOLUBLE METAL SALT SELECTED FROM THE GROUP CONSISTING OF COBALT SALT AND NICKEL SALT TO SAID SOLUTION WHEREBY A PRECIPITATE FORMS AND FISSION PRODUCT VALUES ARE CARRIED ON SAID PRECIPITATE, AND SEPARATING THE PRECIPITATE FROM THE SOLUTION.
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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |