Patent JPS5855375A successfully refreshed from Google Patents.
US3563706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of carbon black
Assignee: Phillips Petroleum Co
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Filing: 1967-12-29
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Granted: 1971-02-16
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Expires: 1987-12-29
Abstract
Abstract CARBON BLACK IS PRODUCED IN INCREASED YIELD BY CONTACTING A HYDROCARBON FEEDSTOCK WITH A FIRST STREAM OF HOT COMBUSTION GASES PRODUCED BY BURNING A COMBUSTIBLE MIXTURE OF A HYDROCARBON FUEL AND AN OXIDANT WHICH CONTAINS MORE THAN THE STOICHIOMETRIC AMOUNT OF OXIDANT REQUIRED FOR THE BURNING OF SAID FUEL, AND CONTACTING THE RESULTING REACTION MIXTURE WITH A STREAM OF HOT COMBUSTION GASES PRODUCE BY DURING A COMBUSTIBLE MIXTURE OF A HYDROCARBON FUEL AND AN OXIDANT WHICH CONTAINS LESS THAN THE STOICHIOMETRIC AMOUNT OF OXIDANT REQUIRED FOR THE BURNING OF SAID FUE. APPARATUS IS ALSO DISCLOSED.
Inventors
- 👤 Thomas J Gunnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:56
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |