Patent US2676235A successfully refreshed from Google Patents.
US2676235A
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US
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Control means for induction furnaces
Assignee: Ajax Electrothermic Corp
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Filing: 1952-03-08
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Granted: 1954-04-20
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Expires: 1972-03-08
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Kennedy
- 👤 Township Lower Makefield
- 👤 William A Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:49
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1833617A
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US1849309A
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US1845910A
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US1951733A
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US1961621A
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US2451224A
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US2522871A
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US2511026A
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US2594181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |