US3385749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gradient density reinforced structural material
Assignee: Goodyear Aerospace Corp
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Filing: 1965-06-03
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Granted: 1968-05-28
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Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 William J Hampshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:32
CPC Classifications
B; B29; B29C; B29C70/00; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10S; Y10S264/00; Y10S264/17; Y10S264/53; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/24942; Y10T428/24992; Y10T428/249921; Y10T428/249953; Y10T428/249961
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A LIGHTWEIGHT LAMINATE THE COMBINATION OF A PLURALITY OF LAYERS OF FOAMED RESIN, A PLURILITY OF ELONGATE RELATIVELY STRAIGHT GLASS FIBERS INTERMIXED WITH THE RESIN AND DEFINING A CRISSCROSS PATTERN THEREBY ESSENTIALLY FORMING A FABRIC-LIKE CONSISTENCY TO THE RESIN, AND WHERE THE AMOUNT OF FIBERS AND THE LENGTH THEREOF IS VARIED ACROSS THE LAYERS OF FOAMED RESIN TO DEVELOP THE GREATEST DENSITY AND STRENGTH OF THE FIBERS NEAR THE SURFACES OF THE LAMINATE.
Claim 2
Dependent Claim
74 words
IN A LIGHTWEIGHT LAMINATE THE COMBINATION OF A PLURALITY OF LAYERS OF FOAMED RESIN, A PLURILITY OF ELONGATE RELATIVELY STRAIGHT GLASS FIBERS INTERMIXED WITH THE RESIN AND DEFINING A CRISSCROSS PATTERN THEREBY ESSENTIALLY FORMING A FABRIC-LIKE CONSISTENCY TO THE RESIN, AND WHERE THE AMOUNT OF FIBERS AND THE LENGTH THEREOF IS VARIED ACROSS THE LAYERS OF FOAMED RESIN TO DEVELOP THE GREATEST DENSITY AND STRENGTH OF THE FIBERS NEAR THE SURFACES OF THE LAMINATE.
References Cited (Backward Citations)
US2642371A
Cited
US3316139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |