US3464843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolytic graphite alloys and method of making the same
Assignee: Union Carbide Corp
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Filing: 1962-03-21
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Granted: 1969-09-02
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Malcolm Basche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:39
CPC Classifications
C; C23; C23C; C23C8/00; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/522
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE PROCESS OF COATING A SUBSTRATE AT A TEMPERATURE BETWEEN ABOUT 1500*C. AND 2300*C. AND A PRESSURE BELOW ABOUT 20MM. OF MERCURY WITH A GASEOUS HYDROCARBON AND A VOLATILE HALIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF SILICON, ALUMINUM, TITANIUM, ZIRCONIUM, HAFNIUM, THORIUM, VANADIUM, NIOBIUM, TANTALUM, MOLYBDENUM, TUNGSTEN AND URANIUM THEREBY DEPOSITING PYROLYTIC GRAPHITE AND AN ELEMENT IN THE FORM OF AN ALLOY ON SAID SUBSTRATE.
Claim 2
Dependent Claim
68 words
THE PROCESS OF COATING A SUBSTRATE AT A TEMPERATURE BETWEEN ABOUT 1500*C. AND 2300*C. AND A PRESSURE BELOW ABOUT 20MM. OF MERCURY WITH A GASEOUS HYDROCARBON AND A VOLATILE HALIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF SILICON, ALUMINUM, TITANIUM, ZIRCONIUM, HAFNIUM, THORIUM, VANADIUM, NIOBIUM, TANTALUM, MOLYBDENUM, TUNGSTEN AND URANIUM THEREBY DEPOSITING PYROLYTIC GRAPHITE AND AN ELEMENT IN THE FORM OF AN ALLOY ON SAID SUBSTRATE.
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) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |