US3134667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pelletizing of iron ore for sintering
Assignee: Inland Steel Co
•
Filing: 1960-02-05
•
Granted: 1964-05-26
•
Expires: 1980-02-05
Abstract
No abstract record available.
Inventors
- 👤 Michael O Holowaty
- 👤 Arthur M Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:06
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PELLET OF IRON ORE FOR A SINTERING PROCESS, SAID PELLET CONSISTING ESSENTIALLY OF COARSE RED HEMATITE IRON ORE, IRON CONCENTRATES NORMALLY DISINTEGRABLE UPON SINTERING IN PELLETIZED FORM, CARBONACEOUS FUEL, AND FINE RED HEMATITE IRON ORE, IN THE FORM OF: AN INNERMOST LAYER CONTAINING SAID COARSE RED HEMATITE IRON ORE AND SAID CARBONACEOUS FUEL; A MIDDLE LAYER CONTAINING A BLEND OF COARSE RED HEMATITE IRON ORE, SAID IRON ORE CONCENTRATES, AND CARBONACEOUS FUEL; AND AN OUTER LAYER CONSISTING ESSENTIALLY OF SAID FINE RED HEMATITE IRON ORE.
Claim 2
Dependent Claim
86 words
A PELLET OF IRON ORE FOR A SINTERING PROCESS, SAID PELLET CONSISTING ESSENTIALLY OF COARSE RED HEMATITE IRON ORE, IRON CONCENTRATES NORMALLY DISINTEGRABLE UPON SINTERING IN PELLETIZED FORM, CARBONACEOUS FUEL, AND FINE RED HEMATITE IRON ORE, IN THE FORM OF: AN INNERMOST LAYER CONTAINING SAID COARSE RED HEMATITE IRON ORE AND SAID CARBONACEOUS FUEL; A MIDDLE LAYER CONTAINING A BLEND OF COARSE RED HEMATITE IRON ORE, SAID IRON ORE CONCENTRATES, AND CARBONACEOUS FUEL; AND AN OUTER LAYER CONSISTING ESSENTIALLY OF SAID FINE RED HEMATITE IRON ORE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |