US3294880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous method of manufacturing ablative and refractory materials
Assignee: Space Age Materials Corp
•
Filing: 1964-04-21
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Granted: 1966-12-27
•
Expires: 1984-04-21
Abstract
No abstract record available.
Inventors
- 👤 Turkat Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
D; D01; D01F; D01F9/00; D01F9/08; D01F9/12; D01F9/127; D01F9/133; B; B82; B82Y; B82Y30/00; C; C01; C01B; C01B32/00; C01B32/90; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/522; C04B35/622; C04B35/62227; C23; C23C; C23C16/00; C23C16/01; D01F9/1271; D01F9/1272; D01F9/1273; D01F9/1275; D01F9/1276; C01P; C01P2004/00; C01P2004/10; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF FORMING CONTINUOUS LENGTHS OF A PURE CRYSTALLINE FILAMENT OF PYROLYTIC GRAPHITE, PYROLYTIC CARBIDES AND COMBINATIONS THEREOF, COMPRISING THE STEPS OF CRACKING HYDROCARBON GASES IN A VACUUM FURNACE AT TEMPERATURES IN THE RANGE OF ABOUT 1900*-2300*C., DEPOSITING THE DECOMPOSITION PRODUCTS THEREOF ON A ROTATING MANDREL HAVING FILAMENT PEELING MEANS IN ENGAGEMENT THEREWITH AND CONTINUOUSLY PEELING SAID DECOMPOSITION PRODUCTS FROM SAID ROTATING MANDREL IN THE FORM OF A CONTINUOUS FILAMENT SAID MANDREL HAVING HELICAL GROOVES FORMED THEREON.
Claim 2
Independent Claim
78 words
A METHOD OF FORMING CONTINUOUS LENGTHS OF A PURE CRYSTALLINE FILAMENT OF PYROLYTIC GRAPHITE, PYROLYTIC CARBIDES AND COMBINATIONS THEREOF, COMPRISING THE STEPS OF CRACKING HYDROCARBON GASES IN A VACUUM FURNACE AT TEMPERATURES IN THE RANGE OF ABOUT 1900*-2300*C., DEPOSITING THE DECOMPOSITION PRODUCTS THEREOF ON A ROTATING MANDREL HAVING FILAMENT PEELING MEANS IN ENGAGEMENT THEREWITH AND CONTINUOUSLY PEELING SAID DECOMPOSITION PRODUCTS FROM SAID ROTATING MANDREL IN THE FORM OF A CONTINUOUS FILAMENT SAID MANDREL HAVING HELICAL GROOVES FORMED THEREON.
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Cited
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |