Patent US3075829A successfully refreshed from Google Patents.
US3075829A
Expired / Lapsed
US
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Process for manufacture of carbon black
Assignee: Continental Carbon Co
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Filing: 1960-05-13
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Granted: 1963-01-29
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Expires: 1980-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Burton F Latham
- 👤 Theodore A Ruble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:14
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00; C01; C01P; C01P2004/00; C01P2004/30; C01P2004/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR PRODUCING CARBON BLACK COMPRISING THE STEPS OF BURNING A FUEL GAS STREAM IN A COMBUSTIONSUPPORTING STREAM TO PRODUCE HOT COMBUSTION GASES, PYROLYTICALLY CONVERTING A FEED STREAM CONSISTING ESSENTIALLY OF HYDROCARBON, INTO CARBON BLACK AND GAS BY CONTACTING SAID FEED IN A VAPOROUS STATE WITH SAID HOT COMBUSTION GASES THEREBY PRODUCING AN EFFLUENT GAS STREAM CONTAINING SUSPENDED CARBON BLACK, RECYCLING TO THE REACTOR COMBUSTION ZONE A MEASURED QUANTITY CONSISTING OF FROM ABOUT 1 TO ABOUT 50 PERCENT OF SAID CARBON BLACK IN SUSPENSION IN AT LEAST ONE OF SAID GAS STREAMS AND RECOVERING THE REMAINDER OF SAID CARBON BLACK.
Claim 2
Dependent Claim
101 words
A PROCESS FOR PRODUCING CARBON BLACK COMPRISING THE STEPS OF BURNING A FUEL GAS STREAM IN A COMBUSTIONSUPPORTING STREAM TO PRODUCE HOT COMBUSTION GASES, PYROLYTICALLY CONVERTING A FEED STREAM CONSISTING ESSENTIALLY OF HYDROCARBON, INTO CARBON BLACK AND GAS BY CONTACTING SAID FEED IN A VAPOROUS STATE WITH SAID HOT COMBUSTION GASES THEREBY PRODUCING AN EFFLUENT GAS STREAM CONTAINING SUSPENDED CARBON BLACK, RECYCLING TO THE REACTOR COMBUSTION ZONE A MEASURED QUANTITY CONSISTING OF FROM ABOUT 1 TO ABOUT 50 PERCENT OF SAID CARBON BLACK IN SUSPENSION IN AT LEAST ONE OF SAID GAS STREAMS AND RECOVERING THE REMAINDER OF SAID CARBON BLACK.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |