Patent US2760855A successfully refreshed from Google Patents.
US2760855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of useful combustible gases from caking bituminous fuels
Assignee: Individual
•
Filing: 1953-01-27
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Granted: 1956-08-28
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Barking Herbert
- 👤 Eymann Constanz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:47
CPC Classifications
C; C10; C10B; C10B57/00; C10B57/04; C10B57/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IN A PROCESS FOR THE PRODUCTION OF METALLIFEROUS COKE ADAPTED FOR BLAST FURNACE OPERATION, THE STEPS COMPRISING; MIXING PREDETERMINED QUANTITIES OF COAL, IRON ORE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF HEAVY MINERAL OIL AND TAR OIL, IN AMOUNTS OF FROM ABOUT 1-3% AND APPLYING HEAT TO SAID MIXTURE TO EFFECT COKING THEREOF.
Claim 2
Dependent Claim
55 words
IN A PROCESS FOR THE PRODUCTION OF METALLIFEROUS COKE ADAPTED FOR BLAST FURNACE OPERATION, THE STEPS COMPRISING; MIXING PREDETERMINED QUANTITIES OF COAL, IRON ORE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF HEAVY MINERAL OIL AND TAR OIL, IN AMOUNTS OF FROM ABOUT 1-3% AND APPLYING HEAT TO SAID MIXTURE TO EFFECT COKING THEREOF.
References Cited (Backward Citations)
US1720290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |