US3223476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of metal values from acid solutions
Assignee: Phillips Petroleum Co
•
Filing: 1962-07-27
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Granted: 1965-12-14
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Expires: 1982-07-27
Abstract
No abstract record available.
Inventors
- 👤 Darall G Hawk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:44
CPC Classifications
C; C22; C22B; C22B34/00; C01; C01G; C01G39/00; C01G39/003; C22B3/00; C22B3/20; C22B3/26; C22B3/28; C22B3/282; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A PROCESS FOR THE RECOVERY OF METAL VALUES FROM A PREGNANT AQUEOUS ACIDIC SOLUTION CONTAINING SAID VALUES AND MOLYBDENUM VALUES, WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN EXTRACTANT COMPRISING A SUBSTANTIALLY WATER-IMMISCIBLE ORGANIC DILUENT AND AN ORGANONITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FORMULAS:
Claim 2
Dependent Claim
50 words
IN A PROCESS FOR THE RECOVERY OF METAL VALUES FROM A PREGNANT AQUEOUS ACIDIC SOLUTION CONTAINING SAID VALUES AND MOLYBDENUM VALUES, WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN EXTRACTANT COMPRISING A SUBSTANTIALLY WATER-IMMISCIBLE ORGANIC DILUENT AND AN ORGANONITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FORMULAS:
References Cited (Backward Citations)
US2819944A
Cited
US3083076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |