Patent DE133185C successfully refreshed from Google Patents.
US3671285A
Expired / Lapsed
US
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Composites and intermediates therefor
Assignee: Akzo NV
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Filing: 1970-02-27
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Granted: 1972-06-20
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Expires: 1990-02-27
Abstract
Abstract COMPOSITES, PREIMPREGNATED TAPES, AND SIZED-CARBON FIBER, PREPARED BY COATING CARBON FIBERS WITH A HIGH CROSSSECTION METAL OR METALLOID AND RESIN MTHEN CURING THE RESIN WHILE IRRADIATING THE FIBER WITH A SOURCE OF THERMAL NEUTRONS, IMPROVES BONDING BETWEEN RESIN AND FIBER.
Inventors
- 👤 Roger Prescott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:35
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/04; C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/06; C08K9/00; C08K9/02; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0883; B29K; B29K2307/00; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/294; Y10T428/2958
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |