US2735828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of carbon black
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:37
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD FOR SEPARATING AND COLLECTING CARBON BLACK PRISING INTIMATELY CONTACTING SAID FURNACE EFFLUENT WITH A VISCOUS BUT PUMPABLE COMPOSITION MADE BY MIXING VISCOUS BUT PUMPABLE COMPOSITION MADE BY MIXING CRUMB RUBBER, AN ANTIOXIDANT AND AN EXTENDER OIL, AND SEPARATING SAID COMPOSITION WITH ADHERING CARBON BLACK AND GASES OF DECREASED CARBON BLACK CONTENT AS SEPARATE PRODUCTS OF THE PROCESS.
Claim 2
Independent Claim
59 words
A METHOD FOR SEPARATING AND COLLECTING CARBON BLACK PRISING INTIMATELY CONTACTING SAID FURNACE EFFLUENT WITH A VISCOUS BUT PUMPABLE COMPOSITION MADE BY MIXING VISCOUS BUT PUMPABLE COMPOSITION MADE BY MIXING CRUMB RUBBER, AN ANTIOXIDANT AND AN EXTENDER OIL, AND SEPARATING SAID COMPOSITION WITH ADHERING CARBON BLACK AND GASES OF DECREASED CARBON BLACK CONTENT AS SEPARATE PRODUCTS OF THE PROCESS.
References Cited (Backward Citations)
US2585659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |