US3088909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed solvents for saline water extraction
Assignee: Individual
•
Filing: 1961-02-09
•
Granted: 1963-05-07
•
Expires: 1981-02-09
Abstract
No abstract record available.
Inventors
- 👤 Richard R Davison
- 👤 Donald W Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:32
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/26; C02F1/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN THE METHOD FOR REMOVING WATER HAVING A LESSENED SALT CONTENT FROM SALINE WATERS BY SOLVENT EXTRACTION, WHEREIN THE WATER IS REMOVED IN AN EXTRACT PHASE AND A MORE CONCENTRATED SALT SOLUTION FORMS THE RAFFINATE PHASE, AND WHEREIN THE EXTRACT PHASE IS HEATED TO CAUSE THE WATER THEREIN TO SEPARATE OUT, THE IMPROVEMENT WHICH COMPRISES USING AS THE SOLVENT A MIXTURE OF AMINES, AT LEAST
Claim 2
Dependent Claim
65 words
IN THE METHOD FOR REMOVING WATER HAVING A LESSENED SALT CONTENT FROM SALINE WATERS BY SOLVENT EXTRACTION, WHEREIN THE WATER IS REMOVED IN AN EXTRACT PHASE AND A MORE CONCENTRATED SALT SOLUTION FORMS THE RAFFINATE PHASE, AND WHEREIN THE EXTRACT PHASE IS HEATED TO CAUSE THE WATER THEREIN TO SEPARATE OUT, THE IMPROVEMENT WHICH COMPRISES USING AS THE SOLVENT A MIXTURE OF AMINES, AT LEAST
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |