Patent US3597170A successfully refreshed from Google Patents.
US3597170A
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US
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Pelletizing of carbon black directly from smoke
Assignee: Phillips Petroleum Co
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Filing: 1968-09-09
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Granted: 1971-08-03
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Expires: 1988-09-09
Abstract
Abstract A PROCESS FOR PRODUCING CARBON BLACK PELLETS IN WHICH THE SMOKE FROM THE REACTOR FLOWS TO THE PELLETER WHERE IT IS QUENCHED TO FORM A CARBON BLACK COMPOSITION SUITABLE FOR PELLETING, THE GASES BEING SEPARATED FROM THE CARBON BLACK WITHIN THE PELLETER.
Inventors
- 👤 Robert E Dollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:33
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C01; C01P; C01P2004/00; C01P2004/50
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |