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US3103418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
krejci
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
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Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:00
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A CONTINUOUS FURNACE CARBON BLACK PRODUCING PROCESS COMPRISING THE CONTINUOUS STEPS OF PASSING A HYDROCARBON FEED INTO A CARBON BLACK FURNACE, HEATING SAID HYDROCARBON IN SAID FURNACE TO CONVERT A PORTION OF SAID HYDROCARBON TO A CARBON BLACK BY A PYROCHEMICAL CRACKING OPERATION IN A FIRST ZONE IN SAID FURNACE, COOLING THE EFFLUENT RESULTING CARBON BLACK CONTAINING GASES, AND SEPARATING SAID CARBON BLACK AND SAID GASES; AN IMPROVEMENT WHICH COMPRISES ADDING A CHLORINE-LIBERATING COMPOUND TO SAID HYDROCARBON FEED IN AN AMOUNT SUFFICIENT TO INCREASE THE YIELD OF SAID CARBON BLACK AND TO PRODUCE SAID CARBON BLACK IN A SUBSTANTIALLY TAR-FREE STATE.
Claim 2
Dependent Claim
102 words
IN A CONTINUOUS FURNACE CARBON BLACK PRODUCING PROCESS COMPRISING THE CONTINUOUS STEPS OF PASSING A HYDROCARBON FEED INTO A CARBON BLACK FURNACE, HEATING SAID HYDROCARBON IN SAID FURNACE TO CONVERT A PORTION OF SAID HYDROCARBON TO A CARBON BLACK BY A PYROCHEMICAL CRACKING OPERATION IN A FIRST ZONE IN SAID FURNACE, COOLING THE EFFLUENT RESULTING CARBON BLACK CONTAINING GASES, AND SEPARATING SAID CARBON BLACK AND SAID GASES; AN IMPROVEMENT WHICH COMPRISES ADDING A CHLORINE-LIBERATING COMPOUND TO SAID HYDROCARBON FEED IN AN AMOUNT SUFFICIENT TO INCREASE THE YIELD OF SAID CARBON BLACK AND TO PRODUCE SAID CARBON BLACK IN A SUBSTANTIALLY TAR-FREE STATE.
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) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |