US2759808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of production of iron powder
Assignee: ALAN WOOD STEEL CO
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Filing: 1952-12-10
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Granted: 1956-08-21
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Expires: 1972-12-10
Abstract
No abstract record available.
Inventors
- 👤 Jerome F Kuzmick
- 👤 Warne P Schenck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20; C; C21; C21B; C21B13/00; C21B13/0046; C21B13/0086; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
THE PROCESS OF PRODUCING POWDER IRON FROM A METERIAL CONSISTING SUBSTANTIALLY OF IRON OXIDE, WHICH COMPRISES PULVERIZING THE IRON OXIDE MATERIAL TO FINELY DIVIDED FROM, MIXING THE IRON OXIDE MATERIAL WITH ASHFREE COKE AND A BINDER, THE QUANTITY OF ASH-FREE COKE RELATED TO THE TEMPERATURE AND TIME OF REDUCTION BEING AS FOLLOWS;
Claim 2
Dependent Claim
52 words
THE PROCESS OF PRODUCING POWDER IRON FROM A METERIAL CONSISTING SUBSTANTIALLY OF IRON OXIDE, WHICH COMPRISES PULVERIZING THE IRON OXIDE MATERIAL TO FINELY DIVIDED FROM, MIXING THE IRON OXIDE MATERIAL WITH ASHFREE COKE AND A BINDER, THE QUANTITY OF ASH-FREE COKE RELATED TO THE TEMPERATURE AND TIME OF REDUCTION BEING AS FOLLOWS;
References Cited (Backward Citations)
US1864593A
Cited
US2413492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |