Patent US2800399A successfully refreshed from Google Patents.
US2800399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for controlling feed rate to pellet mill
Assignee: Phillips Petroleum Co
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Filing: 1954-08-09
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Granted: 1957-07-23
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Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 William R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:06
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR REGULATING THE FLOW RATE OF LOOSE CARBON BLACK TO A PELLETING MILL WHICH COMPRISING PERIODICALLY MEASURING VARIATIONS IN FLOW RATE OF EFFLUENT PELLETS FROM SAID MILL FROM A PREDETERMINED RATE AND PERIODICALLY VARYING THE FLOW RATE OF LOOSE CARBON BLACK TO SAID MILL
Claim 2
Dependent Claim
46 words
A PROCESS FOR REGULATING THE FLOW RATE OF LOOSE CARBON BLACK TO A PELLETING MILL WHICH COMPRISING PERIODICALLY MEASURING VARIATIONS IN FLOW RATE OF EFFLUENT PELLETS FROM SAID MILL FROM A PREDETERMINED RATE AND PERIODICALLY VARYING THE FLOW RATE OF LOOSE CARBON BLACK TO SAID MILL
References Cited (Backward Citations)
US1146956A
Cited
US1241566A
Cited
US1921114A
Cited
US2327016A
Cited
US2503361A
Cited
US2638625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |