US2996372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lump ores and methods of producing them
Assignee: Blocked Iron Corp
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Filing: 1958-07-18
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Granted: 1961-08-15
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Expires: 1978-07-18
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 20:39
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 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-DIAMINE TETRA ACETIC ACID, FORMING THE MIXTURE INTO LUMPS AND REACTING THE RESULTING LUMPS WITH CARBON DIOXIDE IN THE PRESENCE OF MOISTURE TO FORM ALKALINE EARTH CARBONATES PRIOR TO CHARGING IN A METALLURGICAL FURNACE.
Claim 2
Independent Claim
96 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-DIAMINE TETRA ACETIC ACID, FORMING THE MIXTURE INTO LUMPS AND REACTING THE RESULTING LUMPS WITH CARBON DIOXIDE IN THE PRESENCE OF MOISTURE TO FORM ALKALINE EARTH CARBONATES PRIOR TO CHARGING IN A METALLURGICAL FURNACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |