Patent US2861028A successfully refreshed from Google Patents.
US2861028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of coke
Assignee: Individual
•
Filing: 1955-04-08
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Granted: 1958-11-18
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Expires: 1975-04-08
Abstract
No abstract record available.
Inventors
- 👤 Jenkner Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:25
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/02; C10L9/06; C10B; C10B57/00; C10B57/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PROCESS OF PRODUCING COKE FROM A BITUMINUOUS CAKING COAL SO AS TO REDUCE THE QUANTITY OF SMALL AND LARGE PARTICLES AND WHICH DOES NOT YIELD METALLURGICAL COKE WITHOUT PRE-TEREATMENT WITH AN OXIDIZING AGENT, THE IMPROVEMENT WHICH COMPRISES SEPERATING FROM THE COAL THE PARTICLES HAVING A GRAIN SIZE BELOW ABOUT 0.3 MM. AND ABOVE ABOUT 6 MM., TREATING THE CAKING COAL TO BE COKED WITH AN OXIDIZING MEDIUM, AT INCREASED TEMPERATURE OF THE COAL BEFORE COKING AND IN A CONTINUOUS FLOW, AND THEN TREATING THE COAL TO A TEMPERTURE ABOVE ABOUT 70*C.
Claim 2
Dependent Claim
93 words
IN A PROCESS OF PRODUCING COKE FROM A BITUMINUOUS CAKING COAL SO AS TO REDUCE THE QUANTITY OF SMALL AND LARGE PARTICLES AND WHICH DOES NOT YIELD METALLURGICAL COKE WITHOUT PRE-TEREATMENT WITH AN OXIDIZING AGENT, THE IMPROVEMENT WHICH COMPRISES SEPERATING FROM THE COAL THE PARTICLES HAVING A GRAIN SIZE BELOW ABOUT 0.3 MM. AND ABOVE ABOUT 6 MM., TREATING THE CAKING COAL TO BE COKED WITH AN OXIDIZING MEDIUM, AT INCREASED TEMPERATURE OF THE COAL BEFORE COKING AND IN A CONTINUOUS FLOW, AND THEN TREATING THE COAL TO A TEMPERTURE ABOVE ABOUT 70*C.
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |