Patent US2741591A successfully refreshed from Google Patents.
US2741591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for separating ions
Assignee: Veolia WTS Systems USA Inc
•
Filing: 1951-03-02
•
Granted: 1956-04-10
•
Expires: 1971-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ii Davis R Dewey
- 👤 Edwin R Gilliland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:06
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN THE METHOD OF SEPARATING IONIC SPECIES OF LIKE CHARGE IN A SYSTEM COMPRISING TWO ELECTRODES, AT LEAST ONE SOLID REGION THEREBETWEEN, SAID SOLID REGION CONSISTING OF SOLID ION-PERMEABLE SUBSTANTIALLY HYDRAULICALLY IMPERMEABLE SOLVATED GEL MATERIAL AND DEFINING THEREBY AT LEAST TWO LIQUID SOLUTION REGIONS CONTAINING SOLUTIONS HAVING SAID IONIC SPECIES IN DIFFERING RELATIVE PROPORTIONS, ONE OF SAID SOLUTIONG REGIONS BEING BETWEEN ONE OF SAID ELECTRODES AND SAID SOLID REGION, AND THE OTHER OF SAID SOLUTION REGIONS BETWEEN THE OTHER ELECTRODE AND SAID SOLID REGION, THE STEPS COMPRISING: INTRODUCING A LIQUID ELEC-
Claim 2
Dependent Claim
91 words
IN THE METHOD OF SEPARATING IONIC SPECIES OF LIKE CHARGE IN A SYSTEM COMPRISING TWO ELECTRODES, AT LEAST ONE SOLID REGION THEREBETWEEN, SAID SOLID REGION CONSISTING OF SOLID ION-PERMEABLE SUBSTANTIALLY HYDRAULICALLY IMPERMEABLE SOLVATED GEL MATERIAL AND DEFINING THEREBY AT LEAST TWO LIQUID SOLUTION REGIONS CONTAINING SOLUTIONS HAVING SAID IONIC SPECIES IN DIFFERING RELATIVE PROPORTIONS, ONE OF SAID SOLUTIONG REGIONS BEING BETWEEN ONE OF SAID ELECTRODES AND SAID SOLID REGION, AND THE OTHER OF SAID SOLUTION REGIONS BETWEEN THE OTHER ELECTRODE AND SAID SOLID REGION, THE STEPS COMPRISING: INTRODUCING A LIQUID ELEC-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |