Patent US3447852A successfully refreshed from Google Patents.
US3565683A
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US
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Coated filaments
Assignee: General Electric Co
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Filing: 1968-03-21
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Granted: 1971-02-23
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Expires: 1988-03-21
Abstract
Abstract A BORO-CARBON COATING IS DEPOSITED UPON THE ELECTRICALLY HEATED SURFACE OF A PYUROLYTIC CARBON COATED FUSED SILICA OR QUARTZ FIBER AS IT IS PASSED THROUGH A LIQUID THERMALLY DECOMPOSABLE BORON COMPOUND SUCH AS BORON TRICHLORIDE DISSOLVED IN A NON-POLAR ORGANIC SOLVENT SUCH AS BENZENE. THE HEATED PORTION OF THE FILAMENT PRODUCES AN ENVELOPE OF SOLVENT VAPOR AND BORON TRICHLORIDE GAS WHICH ARE PYROLYTICALLY DECOMPOSED AND CARBON AND BORON SIMULTANEOUSLY DEPOSITED ON THE FILAMENT. THE DISCLOSED APPARATUS INCLUDES A MERCURY ELECTRODE STRUCTURE AND OTHER FEATURES BELIEVED TO BE NOVEL.
Inventors
- 👤 Charles R Morelock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:56
CPC Classifications
H; H01; H01B; H01B1/00; C; C03; C03C; C03C25/00; C03C25/10; C03C25/42; C03C25/44; F; F16; F16J; F16J15/00; F16J15/16; F16J15/168; H01C; H01C17/00; H01C17/06; H01C17/20; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2916; Y10T428/2918; Y10T428/292; Y10T428/2933; Y10T428/2964
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |