Patent US3461215A successfully refreshed from Google Patents.
US3461215A
Expired / Lapsed
US
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Electric induction furnace
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1967-03-27
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Granted: 1969-08-12
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Jean Reboux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:09
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/02; C03B5/021; C03B15/00; C03B15/14; C03B15/16; C03C; C03C3/00; C04; C04B; C04B35/00; C04B35/622; C04B35/653; H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/36; H05B6/367; C03B2211/00; C03B2211/70; C03B2211/71
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |