Patent US7247051B2 successfully refreshed from Google Patents.
US2943064A
Expired / Lapsed
US
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Recovery of carbon black
Assignee: Sunoco Inc
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Filing: 1956-10-17
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Granted: 1960-06-28
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Expires: 1976-10-17
Abstract
No abstract record available.
Inventors
- 👤 Lipkin Moses Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:18
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
PROCESS FOR RECOVERING CARBON BLACK WHICH COMPRISES INTRODUCING A STREAM OF EFFLUENT GASES FROM CARBON BLACK PRODUCING FURNACES INTO A COUNTERCURRENT CONTACTING ZONE CONTAINING A COLLECTING AGENT CONSISTING OF A LIQUID PETROLEUM OIL TO PRODUCE A DISPERSION OF CARBON BLACK IN THE OIL, AND REMOVING OIL FROM THE DISPERSION TO INCREASE THE RATIO OF CARBON BLACK TO OIL AND TO OBTAIN A CARBON BLACK PRODUCT CONTAINING FROM 5 TO 40 WEIGHT PERCENT ADSORBED OIL AND FREE OF EXCESS OIL.
Claim 2
Dependent Claim
79 words
PROCESS FOR RECOVERING CARBON BLACK WHICH COMPRISES INTRODUCING A STREAM OF EFFLUENT GASES FROM CARBON BLACK PRODUCING FURNACES INTO A COUNTERCURRENT CONTACTING ZONE CONTAINING A COLLECTING AGENT CONSISTING OF A LIQUID PETROLEUM OIL TO PRODUCE A DISPERSION OF CARBON BLACK IN THE OIL, AND REMOVING OIL FROM THE DISPERSION TO INCREASE THE RATIO OF CARBON BLACK TO OIL AND TO OBTAIN A CARBON BLACK PRODUCT CONTAINING FROM 5 TO 40 WEIGHT PERCENT ADSORBED OIL AND FREE OF EXCESS OIL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |