Patent US3342554A successfully refreshed from Google Patents.
US3342554A
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Carbon black product and method of preparation thereof
Assignee: Cabot Corp
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Filing: 1963-06-20
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Granted: 1967-09-19
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Merrill E Jordan
- 👤 Harvey M Cole
- 👤 William G Burbine
- 👤 David L Petterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:05
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2004/00; C01P2004/01; C01P2004/03; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR MAKING CARBON BLACK COMPRISING (A) ELECTRICALLY INDUCING HEATING OF A STREAM OF INERT GAS TO A THERMAL PLASMA STATE OF AT LEAST ABOUT ONE ATMOSPHERIC PRESSURE WHEREIN FROM ABOUT 10 TO ABOUT 50% OF SAID GAS IS IN AN IONIZED STATE, THEREBY FORMING A ZONE SUITABLE FOR CARRYING OUT HIGH TEMPERATURE REACTION AND (B) CONTINUOUSLY FEEDING A FLUID HYDROCARBON INTO SAID ZONE THEREBY CAUSING THE CECOMPOSITION OF SAID HYDROCARBON TO FORM CARBON BLACK.
Claim 2
Dependent Claim
76 words
A PROCESS FOR MAKING CARBON BLACK COMPRISING (A) ELECTRICALLY INDUCING HEATING OF A STREAM OF INERT GAS TO A THERMAL PLASMA STATE OF AT LEAST ABOUT ONE ATMOSPHERIC PRESSURE WHEREIN FROM ABOUT 10 TO ABOUT 50% OF SAID GAS IS IN AN IONIZED STATE, THEREBY FORMING A ZONE SUITABLE FOR CARRYING OUT HIGH TEMPERATURE REACTION AND (B) CONTINUOUSLY FEEDING A FLUID HYDROCARBON INTO SAID ZONE THEREBY CAUSING THE CECOMPOSITION OF SAID HYDROCARBON TO FORM 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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |