US3594155A
Expired / Lapsed
US
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Method for dynamically controlling decarburization of steel
Assignee: Pittsburgh National Bank
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Filing: 1968-10-30
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Granted: 1971-07-20
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Expires: 1988-10-30
Abstract
Abstract DESCRIBED HEREIN IN A METHOD OF DYNAMICALLY CONTROLLING DECARBURIZATION OF STEEL BY MEASURING THE RATE OF CARBON REMOVAL FROM THE STEEL, MEASURING THE RATE OF OXIDIZER INPUT, CONTINUOUSLY MAINTAINING A BALANCE BETWEEN THE AFOREMENTIONED RATES BY ADJUSTING THE CARBON-OXYGEN REATION RATE AND/OR ADJUSTING THE INPUT OF OXIDIZING MATERIAL TO THE STEEL.
Inventors
- 👤 Sundaresan Ramachandran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:33
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; C21C7/00; C21C7/04; C21C7/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |