US3215520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing lump ores
Assignee: Blocked Iron Corp
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Filing: 1964-05-27
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Granted: 1965-11-02
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis George Imperato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:21
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
THE METHOD OF PRODUCING LUMP ORE FROM FINELY DIVIDED IRON CONTAINING MATERIALS, COMPRISING THE STEPS OF ADMIXING THE FINELY DIVIDED MATERIAL WITH AT LEAST ONE OF THE GROUP CONSISTING OF THE OXIDES AND HYDROXIDES OF ALKALINE EARTH METALS AND WITH A MATERIAL CAPABLE OF SOLUBILIZING ALKALINE EARTH METALS SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE CARBOHYDRATES AND THE SODIUM SALT OF ETHYLENE-DIAMENE TETRAACETIC ACID, AND AT LEAST 0.1% OF AN ALKALINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL OXIDES AND HYDROXIDES, AMMONIUM COMPOUNDS AND AMINES, FORMING THE MIXTURE INTO LUMPS AND REACTING THE RESULTING LUMPS WITH CARBON DIOXIDE IN THE PRESENMCE OF MOISTURE TO FORM ALKALINE EARTH CARRBONATES PRIOR TO CHARGING IN A METALLURGICAL FURNACE.
Claim 2
Independent Claim
118 words
THE METHOD OF PRODUCING LUMP ORE FROM FINELY DIVIDED IRON CONTAINING MATERIALS, COMPRISING THE STEPS OF ADMIXING THE FINELY DIVIDED MATERIAL WITH AT LEAST ONE OF THE GROUP CONSISTING OF THE OXIDES AND HYDROXIDES OF ALKALINE EARTH METALS AND WITH A MATERIAL CAPABLE OF SOLUBILIZING ALKALINE EARTH METALS SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE CARBOHYDRATES AND THE SODIUM SALT OF ETHYLENE-DIAMENE TETRAACETIC ACID, AND AT LEAST 0.1% OF AN ALKALINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL OXIDES AND HYDROXIDES, AMMONIUM COMPOUNDS AND AMINES, FORMING THE MIXTURE INTO LUMPS AND REACTING THE RESULTING LUMPS WITH CARBON DIOXIDE IN THE PRESENMCE OF MOISTURE TO FORM ALKALINE EARTH CARRBONATES PRIOR TO CHARGING IN A METALLURGICAL FURNACE.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |