Patent US2585659A successfully refreshed from Google Patents.
US2585659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of carbon black from suspension in a gas
Assignee: Phillips Petroleum Co
•
Filing: 1946-03-25
•
Granted: 1952-02-12
•
Expires: 1966-03-25
Abstract
No abstract record available.
Inventors
- 👤 Myron O Kilpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:29
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE PROCESS OF RECOVERING CARBON BLACK FROM SUSPENSION IN A GAS WHICH COMPRISES INTIMATELY SCRUBBING SAID GAS CONTAINING CARBON BLACK IN SUSPENSION WITH AN AQUEOUS LIQUID MEDIUM CONTAINING AN ADDED WETTING AGENT AND THEREBY CAUSING THE CARBON BLACK PARTICLES TO LEAVE SAID GAS AND BECOME SUSPENDED IN SAID AQUEOUS LIQUID MEDIUM AND FORM A LIQUID AQUEOUS CARBON BLACK SLURRY, WITHDRAWING THE RESULTING LIQUID SLURRY FROM THE SCRUBBING ZONE, SPLITTING THE WITHDRAWN
Claim 2
Dependent Claim
71 words
THE PROCESS OF RECOVERING CARBON BLACK FROM SUSPENSION IN A GAS WHICH COMPRISES INTIMATELY SCRUBBING SAID GAS CONTAINING CARBON BLACK IN SUSPENSION WITH AN AQUEOUS LIQUID MEDIUM CONTAINING AN ADDED WETTING AGENT AND THEREBY CAUSING THE CARBON BLACK PARTICLES TO LEAVE SAID GAS AND BECOME SUSPENDED IN SAID AQUEOUS LIQUID MEDIUM AND FORM A LIQUID AQUEOUS CARBON BLACK SLURRY, WITHDRAWING THE RESULTING LIQUID SLURRY FROM THE SCRUBBING ZONE, SPLITTING THE WITHDRAWN
References Cited (Backward Citations)
GB114040A
Cited
US1707775A
Cited
US1767089A
Cited
US1765991A
Cited
US1801436A
Cited
US1902746A
Cited
GB429088A
Cited
US2121535A
Cited
US2163630A
Cited
US2123482A
Cited
US2289672A
Cited
US2254572A
Cited
US2306698A
Cited
US2288087A
Cited
US2368828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |