US3408164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma treatment of carbon blacks
Assignee: Phillips Petroleum Co
•
Filing: 1966-07-08
•
Granted: 1968-10-29
•
Expires: 1986-07-08
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:10
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088; B01J19/26; B82; B82Y; B82Y30/00; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C3/00; C09C3/04; C09C3/048; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00159; B01J2219/08; B01J2219/0803; B01J2219/0805; B01J2219/0807; B01J2219/0809; B01J2219/0871; B01J2219/0873; B01J2219/0879; B01J2219/0881; B01J2219/0886; B01J2219/0894; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/64; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/19; C01P2006/40; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR TREATING A PREVIOUSLY FORMED CARBON BLACK WITH PLASMA SO AS TO MODIFY AT LEAST ONE PROPERTY OF SAID CARBON BLACK, WHICH PROCESS COMPRISES: FORMING A STREAM OF SAID PLASMA; PASSING SAID CARBON BLACK INTO CONTACT WITH SAID PLASMA IN A CONTACTING ZONE; AND RECOVERING PLASMA TREATED CARBON BLACK FROM THE EFFLUENT STREAM FROM SAID CONTACTING ZONE.
Claim 2
Dependent Claim
59 words
A PROCESS FOR TREATING A PREVIOUSLY FORMED CARBON BLACK WITH PLASMA SO AS TO MODIFY AT LEAST ONE PROPERTY OF SAID CARBON BLACK, WHICH PROCESS COMPRISES: FORMING A STREAM OF SAID PLASMA; PASSING SAID CARBON BLACK INTO CONTACT WITH SAID PLASMA IN A CONTACTING ZONE; AND RECOVERING PLASMA TREATED CARBON BLACK FROM THE EFFLUENT STREAM FROM SAID CONTACTING ZONE.
References Cited (Backward Citations)
US2922869A
Cited
US3009783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |