Patent US4319846A successfully refreshed from Google Patents.
US3201200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified carbon black production
Assignee: JM Huber Corp
•
Filing: 1962-04-10
•
Granted: 1965-08-17
•
Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Voet Andries
- 👤 Iannicelli Joseph
- 👤 Archie C Teter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2006/00; C01P2006/10; C01P2006/19; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE PRODUCTION OF CARBON BLACK IN A FURNACE OPERATING CONTINUOUSLY AT HIGH TEMPERATURE, WHEREIN A LIQUID HYDROCARBON FEEDSTOCK IS FED CONTINUOUSLY TO THE FURNACE AND IS VAPORIZED AND PYROLYZED THEREIN TO YIELD CARBON, THE METHOD OF CONTINUOUSLY UNIFORMLY MODIFYING THE STRUCTURE OF THE CARBON BLACK PRODUCED WHICH COMPRISES HOMOGENEOUSLY DISSOLVING IN SAID FEEDSTOCK A PRECISELY PROPORTIONED MINOR AMOUNT OF A MIXTURE OF AN ALKALI METAL SALT OF AN ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF ALKYL AND CYCLOALKYL CARBOXYLIC AND SULFONIC ACIDS AND AN OIL-SOLUBLE FREE FATTY ACID THAT ENHANCES THE OIL-SOLUBILITY OF SAID SALT.
Claim 2
Dependent Claim
97 words
IN THE PRODUCTION OF CARBON BLACK IN A FURNACE OPERATING CONTINUOUSLY AT HIGH TEMPERATURE, WHEREIN A LIQUID HYDROCARBON FEEDSTOCK IS FED CONTINUOUSLY TO THE FURNACE AND IS VAPORIZED AND PYROLYZED THEREIN TO YIELD CARBON, THE METHOD OF CONTINUOUSLY UNIFORMLY MODIFYING THE STRUCTURE OF THE CARBON BLACK PRODUCED WHICH COMPRISES HOMOGENEOUSLY DISSOLVING IN SAID FEEDSTOCK A PRECISELY PROPORTIONED MINOR AMOUNT OF A MIXTURE OF AN ALKALI METAL SALT OF AN ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF ALKYL AND CYCLOALKYL CARBOXYLIC AND SULFONIC ACIDS AND AN OIL-SOLUBLE FREE FATTY ACID THAT ENHANCES THE OIL-SOLUBILITY OF SAID SALT.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |