Patent US2632463A successfully refreshed from Google Patents.
US2480463A
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US
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Automatic control of electric arc furnaces
Assignee: Individual
•
Filing: 1946-02-28
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Granted: 1949-08-30
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Expires: 1966-02-28
Abstract
No abstract record available.
Inventors
- 👤 Grangette Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:27
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/144; H05B7/148; H05B7/152; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1347838A
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US947849A
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US1189794A
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US1253198A
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US1479836A
Cited
US1495421A
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US1571924A
Cited
GB179595A
Cited
FR857940A
Cited
US2419988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |