Patent US2014615A successfully refreshed from Google Patents.
US2014615A
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Method of controlling current flow in an electric furnace and electrode apparatus therefor
Assignee: FAIRMOUNT GLASS WORKS Inc
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Filing: 1934-05-26
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Granted: 1935-09-17
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Expires: 1954-05-26
Abstract
No abstract record available.
Inventors
- 👤 Ferguson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:58
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/02; C03B5/027; C03B5/0275; H; H05; H05B; H05B3/00; H05B3/02; H05B3/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-09-16 | 1939-03-18 | 1939-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-16 | 1943-03-18 | 1943-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-16 | 1947-03-18 | 1947-09-17 | $7700.00 | Window Closed / Lapsed |