US2744743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pellet indurating process and apparatus
Assignee: Erie Mining Co
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Filing: 1951-11-05
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Granted: 1956-05-08
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Expires: 1971-11-05
Abstract
No abstract record available.
Inventors
- 👤 Beggs Donald
- 👤 Coriolis Ernest G De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/01; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE COMBINATION WITH A VERTICAL, STATIONARY-WALLED SHAFT FURNACE FOR HEAT-TREATING FLUENT MINERAL SOLID PARTICLES DESCENDING THERETHROUGH IN A CONTINUOUS COLUMN, OF A PROBING DEVICE ASSOCIATED WITH THE FURNACE FOR DISINTEGRATING CHUNKS OF AGGLOMERATED PARTICLES IN SAID COLUMN, SAID PROBING DEVICE COMPRISING A PLURALITY OF PROBES LOCATED ADJACENT AT LEAST ONE SIDE OF THE FURNACE SAID PROBES BEING MOVABLE ALONG A PATH GENERALLY TRANSVERSE OF THE MAJOR AXIS OF THE FURNACE THROUGH CORRESPONDINGLY POSITIONED SLOTS IN THE FURNACE WALL INTO THE
Claim 2
Dependent Claim
80 words
THE COMBINATION WITH A VERTICAL, STATIONARY-WALLED SHAFT FURNACE FOR HEAT-TREATING FLUENT MINERAL SOLID PARTICLES DESCENDING THERETHROUGH IN A CONTINUOUS COLUMN, OF A PROBING DEVICE ASSOCIATED WITH THE FURNACE FOR DISINTEGRATING CHUNKS OF AGGLOMERATED PARTICLES IN SAID COLUMN, SAID PROBING DEVICE COMPRISING A PLURALITY OF PROBES LOCATED ADJACENT AT LEAST ONE SIDE OF THE FURNACE SAID PROBES BEING MOVABLE ALONG A PATH GENERALLY TRANSVERSE OF THE MAJOR AXIS OF THE FURNACE THROUGH CORRESPONDINGLY POSITIONED SLOTS IN THE FURNACE WALL INTO THE
References Cited (Backward Citations)
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US446971A
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US688651A
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US1144168A
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US1620659A
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US2500828A
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US2527309A
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |