US3556834A
Expired / Lapsed
US
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Low temperature method for producing amorphous boron-carbon deposits
Assignee: General Electric Co
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Filing: 1966-09-28
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Granted: 1971-01-19
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Expires: 1986-09-28
Abstract
Abstract PROCESS FOR PRODUCING AN AMORPHOUS BORON-CARBON DEPOSIT ON A FILAMENTARY SUBSTRATE AT A TEMPERATURE BELOW 1,000*C. BY HEATING THE FILAMENTARY SUBSTRATE IN A VACUUM CHAMBER TO A TEMPERATURE ABOVE 700*C., PREFERABLY IN THE RANGE 750-850*C., AND CONTACTING IT WITH A HYDROCARBON-SUBSTITUTED BORANE GAS SUCH AS ETHYL DECABORANE OR TRIETHY BORANE.
Inventors
- 👤 Joseph J Gebhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:13
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/54; C23C16/545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |