US3203783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of incorpoation of correctives in the manufacture of iron by the method of fusion with a consumable electrode
Assignee: Renault SA
•
Filing: 1961-04-07
•
Granted: 1965-08-31
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Expires: 1981-04-07
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:48
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/18; C21; C21B; C21B13/00; C21B13/008; C21B13/0086; C21B13/0093; C21B13/12; C21B13/14; C21C; C21C5/00; C21C5/52; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD FOR THE PRODUCTION OF ELECTRODE BARS TO BE USED IN THE ELECTROSMELTING OF IRON ORE AND STEEL, COMPRISING THE STEPS OF REDUCING IRON ORE IN A FIRST STAGE TO THE MONOXIDE STATE, CRUSHING THE REDUCED ORE TO POWDER FORM, ADDIN SLAG-FORMING MATERIALS TO THIS POWDERED REDUCED ORE AND THEN FURTHER REDUCING THIS ORE IN A SECOND STAGE WITH A CURRENT OF HOT REDUCING GAS, COMPRESSING AND SINTERING THE RESULTANT METALLIC IRON PARTICLES INTO ELECTRODE BARS.
Claim 2
Independent Claim
77 words
A METHOD FOR THE PRODUCTION OF ELECTRODE BARS TO BE USED IN THE ELECTROSMELTING OF IRON ORE AND STEEL, COMPRISING THE STEPS OF REDUCING IRON ORE IN A FIRST STAGE TO THE MONOXIDE STATE, CRUSHING THE REDUCED ORE TO POWDER FORM, ADDIN SLAG-FORMING MATERIALS TO THIS POWDERED REDUCED ORE AND THEN FURTHER REDUCING THIS ORE IN A SECOND STAGE WITH A CURRENT OF HOT REDUCING GAS, COMPRESSING AND SINTERING THE RESULTANT METALLIC IRON PARTICLES INTO ELECTRODE BARS.
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |