Patent US3073681A successfully refreshed from Google Patents.
US3073681A
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US
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Carbon black preparation
Assignee: United Carbon Co Inc
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Filing: 1960-12-30
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Granted: 1963-01-15
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ceresna Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:09
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C09C1/54; C01; C01P; C01P2004/00; C01P2004/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A PROCESS FOR PREPARING CARBON BLACK BY THERMALLY DECOMPOSING A FLUID HYDROCARBON FEEDSTOCK IN A REACTION CHAMBER, THE IMPROVED METHOD FOR OBTAINING A CARBON BLACK OF PRESELECTED MODULUS WHICH COMPRISES: CONTINUOUSLY INTRODUCING INTO SAID CHAMBER A FLUID HYDROCARBON FEEDSTOCK AND A SOLID CARBONACEOUS MODULUS CONTROL AGENT IN PARTICULATE FORM SELECTED FROM THE CLASS CONSISITING OF COAL, COKE AND CHARCOAL, THE RATIO OF MODULUS CONTROL AGENT TO HYDROCARBON FEEDSTOCK BEING SUCH AS TO PRODUCE ON THERMAL DECOMPOSITION OF SAID FEEDSTOCK A CARBON BLACK OF PRESELECTED MODULUS, AND RECOVERING CARBON BLACK OF SAID PRESELECTED MODULUS FROM THE RESULTANT PRODUCTS OF REACTION.
Claim 2
Dependent Claim
100 words
IN A PROCESS FOR PREPARING CARBON BLACK BY THERMALLY DECOMPOSING A FLUID HYDROCARBON FEEDSTOCK IN A REACTION CHAMBER, THE IMPROVED METHOD FOR OBTAINING A CARBON BLACK OF PRESELECTED MODULUS WHICH COMPRISES: CONTINUOUSLY INTRODUCING INTO SAID CHAMBER A FLUID HYDROCARBON FEEDSTOCK AND A SOLID CARBONACEOUS MODULUS CONTROL AGENT IN PARTICULATE FORM SELECTED FROM THE CLASS CONSISITING OF COAL, COKE AND CHARCOAL, THE RATIO OF MODULUS CONTROL AGENT TO HYDROCARBON FEEDSTOCK BEING SUCH AS TO PRODUCE ON THERMAL DECOMPOSITION OF SAID FEEDSTOCK A CARBON BLACK OF PRESELECTED MODULUS, AND RECOVERING CARBON BLACK OF SAID PRESELECTED MODULUS FROM THE RESULTANT PRODUCTS OF REACTION.
References Cited (Backward Citations)
US1285363A
Cited
US1625236A
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US1987644A
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US1902746A
Cited
US1939587A
Cited
US2781246A
Cited
US2867508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |