Patent US2300559A successfully refreshed from Google Patents.
Patent US2950094A successfully refreshed from Google Patents.
US2950094A
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Cooling arrangement for electric furnace
Assignee: Republic Steel Corp
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Filing: 1957-04-08
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Granted: 1960-08-23
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Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Garmy Robert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:47
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/24; F27B14/00; F27B14/08; F27B2014/0837
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US733191A
Cited
US1253766A
Cited
GB221188A
Cited
US1919179A
Cited
US2277526A
Cited
US2541764A
Cited
US2640860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |