Patent US3778334A successfully refreshed from Google Patents.
US3778334A
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High modulus organic fiber layers alternating with inorganic fiber layers in a resin matrix
Assignee: EIDP Inc
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Filing: 1971-04-20
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Granted: 1973-12-11
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Expires: 1991-04-20
Abstract
Abstract FIBROUS REINFORCED RESIN COMPOSITES COMPRISING HIGH MODULUS ORGANIC FIBERS AND INORGANIC FIBROUS MATERIALS IN SPECIFIED PROPORTIONS DEMONSTRATE SURPRISING INCREASES IN A STRUCTURAL PROPERTY ABOVE THOSE PREDICTED BY THE RULE OF MIXTURES.
Inventors
- 👤 D Sturgeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:41
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/02; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/10; B32B2262/101; B32B2262/106; Y; Y02; Y02E; Y02E30/00; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/2964; Y10T442/00; Y10T442/20; Y10T442/2361; Y10T442/25; Y10T442/30; Y10T442/3382; Y10T442/3415; Y10T442/3447; Y10T442/40; Y10T442/475; Y10T442/50; Y10T442/59
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |