Patent US3148024A successfully refreshed from Google Patents.
US3148024A
Expired / Lapsed
US
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Process for removing iron from an inorganic aluminum salt solution
Assignee: Universal Oil Products Co
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Filing: 1962-10-29
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Granted: 1964-09-08
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 John C Hayes
- 👤 Edward J Bicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:54
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/68; C01F7/74; C01F7/746; C01F7/748; C01F7/48; C01F7/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A METHOD FOR REMOVING IRON FROM AN INORGANIC ALUMINUM SALT SOLUTION WHICH COMPRISES CONTACTING SAID SOLUTION WITH ALUMINUM CUPFERRATE, THEREBY FORMING AN IRONCUPFERRON COMPLEX AND REMOVING SAID SOLUTION SUBSTANTIALLY REDUCED IN IRON CONCENTRATION.
Claim 2
Independent Claim
33 words
A METHOD FOR REMOVING IRON FROM AN INORGANIC ALUMINUM SALT SOLUTION WHICH COMPRISES CONTACTING SAID SOLUTION WITH ALUMINUM CUPFERRATE, THEREBY FORMING AN IRONCUPFERRON COMPLEX AND REMOVING SAID SOLUTION SUBSTANTIALLY REDUCED IN IRON CONCENTRATION.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |