US2773112A
Expired / Lapsed
US
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Arrangement for positioning electrodes of an electric arc furnace
Assignee: Licentia Patent Verwaltungs GmbH
•
Filing: 1953-10-05
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Granted: 1956-12-04
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Expires: 1973-10-05
Abstract
No abstract record available.
Inventors
- 👤 Grebe Otto
- 👤 Driller Albert
- 👤 Buhring Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:07
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/144; H05B7/148; H05B7/152; H05B7/005; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US790226A
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DE325702C
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US1648563A
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US1626431A
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GB264851A
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US1645049A
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US1901426A
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US2386402A
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US2527830A
Cited
US2556318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |