US2744152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric furnace with carbonaceous atmosphere
Assignee: General Electric Co
•
Filing: 1954-10-28
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Granted: 1956-05-01
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Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel R White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:13
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0014
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
AN ELECTRICALLY HEATED FURNACE COMPRISING A HEATING ENCLOSURE FOR RECEIVING ARTICLES TO BE TREATED, MEANS FOR INTRODUCING INTO SAID ENCLOSURE A CARBONACEOUS ATMOSPHERE CONTAINING CARBON MONOXIDE, HEATING MEANS COMPRISING ELECTRICAL HEATING ELEMENTS MOUNTED WITHIN SAID ENCLOSURE, CONDUCTOR ELEMENTS EXTENDING INTO SAID ENCLOSURE AND CONNECTED TO SAID HEATING ELEMENTS, AND A COATING OF CHROMIUM OVER AT LEAST A PORTION OF SAID CONDUCTOR ELEMENTS FOR REDUCING THE RATE OF CARBON DEPOSIT THEREON.
References Cited (Backward Citations)
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Cited
US1538972A
Cited
US1624345A
Cited
US1764045A
Cited
US2009732A
Cited
US2232327A
Cited
US2359157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |