Patent EP0391853A2 successfully refreshed from Google Patents.
US3223605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of carbon black
Assignee: Continental Carbon Co
•
Filing: 1962-08-27
•
Granted: 1965-12-14
•
Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Ruble
- 👤 Jr Burton F Latham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:31
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
IN A PROCESS FOR THE MANUFACTURE OF CARBON BLACK WHEREIN A NORMALLY LIQUID HYDROCARBON FEEDSTOCK IS INJECTED INTO A REACTION ZONE IN WHICH PYROLYSIS CONDITION ARE CONTINUOUSLY MAINTAINED; THE IMPROVEMENT WHICH COMPRISES INJECTING SAID FEEDSTOCK IN AN ATOMIZED FORM INTO THE REACTION ZONE FROM A SPRAY NOZZLE WHICH ALONE IS MAINTAINED AT A POTENTIAL OF FROM ABOUT 1000 TO 100,000 VOLTS.
References Cited (Backward Citations)
US2357857A
Cited
US3009783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |