Patent US3018171A successfully refreshed from Google Patents.
US3018171A
Expired / Lapsed
US
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Wet pelleting process and apparatus
Assignee: Phillips Petroleum Co
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Filing: 1957-02-04
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Granted: 1962-01-23
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Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 Lyle W Pollock
- 👤 James Q Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:39
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/10; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C01; C01P; C01P2004/00; C01P2004/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
A PROCES FOR PELLETING CARBON BLACK WHICH COMPRISES PASSING DRY FLOCCULENT CARBON INTO THE FIRST OF A SERIES OF WET PELLETIZERS; ADMIXING WATER WITH THE BLACK IN SAID PELLETIZERS; AGITATING THE RESULTING WET MIXTURE WHILE PASSING SAME THRU SAID PELLETIZERS IN SERIES SO
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |