Patent US3700535A successfully refreshed from Google Patents.
US3700535A
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Carbon fiber structure and method of forming same
Assignee: United States Atomic Energy Commission
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Filing: 1971-03-12
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Granted: 1972-10-24
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Expires: 1991-03-12
Abstract
Abstract AN ANNULAR CARBON FIBER STRUCTURE INCLUBING A MULTIPLICITY OF CARBON FIBER LAYERS, WITH EACH LAYER COMPOSED OF A PLURALITY OF SIMILAR ELONGATED QUADRANGULAR CARBON FIBER SHEETS LAID SIDE BY SIDE ALONG THE LONG DIMENSIONS OF SAID SHEETS IN GENERALLY SPIRAL FASHION ABOUT THE STRUCTURE WITH EACH SHEET BEING MADE OF UNIDIRECTIONAL FIBERS LAID SIDE BY SIDE PARALLEL TO A LONG DIMENSION OF SAID SHEETS AND WITH THE FIBER SHEETS OF ADJOINING OVERLYING LAYERS DISPOSED IN OPPOSITELY ANGLED RELATIONSHIP WITH REPECT TO FIBERS OF SHEETS IN AN ADJOINING LAYER AND THE PROCESS FOR MAKING THE SAME.
Inventors
- 👤 J C Mccoy
- 👤 James W Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:27
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/71; C04B35/78; C04B35/80; C04B35/83; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C69/00; B29C69/001; B29C69/002; B29C69/003; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/205; B29C70/207; B29C70/28; B29C70/30; B29C70/34; B29C70/345; B29C2793/00; B29C2793/0081; B29K; B29K2307/00; B29L; B29L2031/00; B29L2031/772; B29L2031/7724; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10S273/00; Y10S273/23; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/249921; Y10T428/249922; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/2936
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |