US3054166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for melting refractory metals
Assignee: Union Carbide Corp
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Filing: 1959-02-27
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Granted: 1962-09-18
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard R Spendelow
- 👤 Robert L Folkman
- 👤 Charles R Allenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:16
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/08; C; C22; C22B; C22B34/00; C22B4/00; C22B9/00; C22B9/16; C22B9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A NON-CONSUMABLE ELECTRODE FOR ARC MELTING OF HIGHMELTING POINT, REACTIVE, REFRACTORY METALS GROUP IV, V, AND VI OF THE PERIODIC TABLE, WHICH ELECTRODE CONSISTS ESSENTIALLY OF A CARBIDE OF SIAD METALS, 3 TO 8 PERCENT FREE CARBON, UP TO 3 PERCENT IRON, AND THE BALANCE INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
47 words
A NON-CONSUMABLE ELECTRODE FOR ARC MELTING OF HIGHMELTING POINT, REACTIVE, REFRACTORY METALS GROUP IV, V, AND VI OF THE PERIODIC TABLE, WHICH ELECTRODE CONSISTS ESSENTIALLY OF A CARBIDE OF SIAD METALS, 3 TO 8 PERCENT FREE CARBON, UP TO 3 PERCENT IRON, AND THE BALANCE INCIDENTAL IMPURITIES.
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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |