US2836486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exothermic alloy addition agent
Assignee: Union Carbide Corp
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Filing: 1954-03-26
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Granted: 1958-05-27
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Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Brennan
- 👤 Earle R Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:32
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; B; B22; B22C; B22C9/00; B22C9/08; C21; C21C; C21C7/00; C22B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A FERROALLOY MIXTURE FOR ADDITION TO MOLTEN STEEL COMPRISING 5 TO 15% SODIUM NITRATE, 2 TO 8% ALUMINUM, UP TO 10% OF AT LEAST ONE ACCELERATOR MATERIAL SELECTED FROM THE GROUP CONSISTING OF LIME, CRYOLITE, CALCIUM FLUORIDE, SODIUM CARBONATE, SODIUM SILICATE AND CALCIUM ALUMINATE, THE REMAINDER FERROALLOY, AND CHARACTERIZED BY RELATIVELY HIGH EXOTHERMICITY AND FAST SOLUTION RATE, SAID MIXTURE COMPONENTS BEING INTIMATELY ASSOCIATED IN HOMOGENEOUS RELATIONSHIP.
Claim 2
Dependent Claim
66 words
A FERROALLOY MIXTURE FOR ADDITION TO MOLTEN STEEL COMPRISING 5 TO 15% SODIUM NITRATE, 2 TO 8% ALUMINUM, UP TO 10% OF AT LEAST ONE ACCELERATOR MATERIAL SELECTED FROM THE GROUP CONSISTING OF LIME, CRYOLITE, CALCIUM FLUORIDE, SODIUM CARBONATE, SODIUM SILICATE AND CALCIUM ALUMINATE, THE REMAINDER FERROALLOY, AND CHARACTERIZED BY RELATIVELY HIGH EXOTHERMICITY AND FAST SOLUTION RATE, SAID MIXTURE COMPONENTS BEING INTIMATELY ASSOCIATED IN HOMOGENEOUS RELATIONSHIP.
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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |