US3837985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-directional reinforced composite and method of making the same
Assignee: Whittaker Corp
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Filing: 1972-02-24
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Granted: 1974-09-24
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Expires: 1992-02-24
Abstract
Abstract AN IMPROVED COMPOSITE IS FABRICATED BY LAYING UP A THICKNESS OF FIBERS BEARING AN UNCURED RESIN MATRIX, DRIVING A SERIES OF SPACED CURED RESIN IMPREGNATED REINFORCING ELEMENTS AT LEAST PARTIALLY THROUGH THE LAY-UP AT AN ANGLE, AND THEN FULLY CURING THE RESULTING COMPOSITE TO BOND THE REINFORCING ELEMENTS INTO THE LAY-UP. D R A W I N G
Inventors
- 👤 V Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/24; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/28; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/023; B32B2260/04; B32B2260/046; B32B2305/00; B32B2305/08; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T428/00; Y10T428/249921; Y10T428/249923
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |