Patent US2501832A successfully refreshed from Google Patents.
US2501832A
Expired / Lapsed
US
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Bessemerizing of ferrous metal
Assignee: AM Byers Co
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Filing: 1948-02-17
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Granted: 1950-03-28
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Expires: 1968-02-17
Abstract
No abstract record available.
Inventors
- 👤 Edward B Story
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:04
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; C21C5/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
IN THE ACID BESSERIZING OF FERROUS METAL, THE STEPS OF PARTIALLY ACID BESSEMERIZING FERROUS METAL IN A CONVERTER UNTIL MATERIALLY LESS THAN ALL THE CONSTITUENTS IN THE FERROUS METAL WHICH ARE TO BE OXIDIZED BY BESSEMERIZING HAVE BEEN OXIDIZED AND THE ACID REFINING SLAG IN THE CONVERTER ATTAINS SUBSTANTIALLY ITS LEAST FLUID CONDITION, AT THAT TIME TILTING THE CONVERTER AND POURING OUT THE PARTIALLY BESSERMIZED METAL WHILE RETAINING THE SLAG IN THE CONVERTER, DEPHOSPHORIZING THE PARTIALLY BESSEMERIZED METAL AND THEREAFTER COMPLETING THE BESSEMERIZING OF THE METAL.
References Cited (Backward Citations)
US2207109A
Cited
US2305052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |