Patent US2993814A successfully refreshed from Google Patents.
US2993814A
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Heating conductor and method of making the same
Assignee: Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
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Filing: 1959-05-19
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Granted: 1961-07-25
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Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 Epprecht Wilfried
- 👤 Held Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:26
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/04; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
HEATING CONDUCTOR COMPOSED OF A CONDUCTOR CONSISTING ESSENTIALLY OF SILICON CARBIDE WITH A COATING OF MOLYBDENUM SILICIDE SINTERED ON THE CONDUCTOR AND RESISTANT TO OXIDIZING.
Claim 2
Dependent Claim
25 words
HEATING CONDUCTOR COMPOSED OF A CONDUCTOR CONSISTING ESSENTIALLY OF SILICON CARBIDE WITH A COATING OF MOLYBDENUM SILICIDE SINTERED ON THE CONDUCTOR AND RESISTANT TO OXIDIZING.
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |