US2799573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sintering ores
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-04-07
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Granted: 1957-07-16
•
Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 James C Barnett
- 👤 James D Barnhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:33
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METTHOD OF SINTERING ORES, WHICH COMPRISES INTIMATELY MIXING TOGETHER FINELY DIVIDED ORE, FUEL AND WATER, BLENDING WITH SAID MIXTURE RECYCLE FINES FROM A PREVIOUS SINTERING OPERATION AND THEN SUBJECTING THE BLENDED PRODUCT TO BLAST ROASTING AT A TEMPERATURE SUFFICIENT TO EFFECT AGGLOMERATION OF SAID ORE; SAID FINES, SAID FUEL AND SAID WATER RESPECTIVELY CONSTITUTING ABOUT 5% TO ABOUT 25%, ABOUT 2% TO ABOUT 15%, AND ABOUT 5% TO ABOUT 21%, BY WEIGHT OF SAID BLENDED PRODUCT, AND
Claim 2
Dependent Claim
78 words
THE METTHOD OF SINTERING ORES, WHICH COMPRISES INTIMATELY MIXING TOGETHER FINELY DIVIDED ORE, FUEL AND WATER, BLENDING WITH SAID MIXTURE RECYCLE FINES FROM A PREVIOUS SINTERING OPERATION AND THEN SUBJECTING THE BLENDED PRODUCT TO BLAST ROASTING AT A TEMPERATURE SUFFICIENT TO EFFECT AGGLOMERATION OF SAID ORE; SAID FINES, SAID FUEL AND SAID WATER RESPECTIVELY CONSTITUTING ABOUT 5% TO ABOUT 25%, ABOUT 2% TO ABOUT 15%, AND ABOUT 5% TO ABOUT 21%, BY WEIGHT OF SAID BLENDED PRODUCT, AND
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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) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |