US3575783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional fiber reinforced metal matrix tape
Assignee: RTX Corp
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Filing: 1968-11-13
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Granted: 1971-04-20
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Expires: 1988-11-13
Abstract
Abstract A UNIDIRECTIONAL FIBER-REINFORCED HETEROGENEOUS MATRIX TAPE HAVING SUPERIOR OFF-AXIS STRENGTH COMPRISING A PLURALITY OF HIGH STRENGTH, HIGH MODULUS FILAMENTS, A FIRST METAL MATRIX MATERIAL SUBSTANTIALLY ENCASING THE FILAMENTS AND A SECOND METAL MATRIX MATERIAL OF SUBSTANTIALLY HIGHER STRENGTH RELATIVE TO THE FIRST MATRIX MATERIAL BONDED TO AND IN LAMINAR RELATION WITH THE FILAMENTS AND THE FIRST MATRIX MATERIAL.
Inventors
- 👤 Kenneth G Kreider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:37
CPC Classifications
C; C22; C22C; C22C47/00; C22C47/16; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/12063; Y10T428/12465; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12729; Y10T428/12736; Y10T428/12743; Y10T428/12986
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |