Patent US3579411A successfully refreshed from Google Patents.
US3579411A
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Filament reinforced structure and method of making
Assignee: EDGAR D WILSON
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Filing: 1967-09-27
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Granted: 1971-05-18
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Expires: 1987-09-27
Abstract
Abstract A LIGHTWEIGHT, HIGH STRENGTH STRUCTURE AND METHOD OF MAKING SAME. SPACED PANELS ARE INTERCONNECTED BY HIGH TENSILE STRENGTH FLEXIBLE FILMAENTS OF GLASS FIBER OR METAL WHICH FILAMENTS PENETRATE THROUGH THE PANELS, AND ARE WOVEN BACK AND FORTH. THE PORTIONS OF THE FILAMENTS EXTENDING BETWEEN THE PANELS ARE SUBSEQUENTLY RIGIDIZED BY THE ADDITION OF A COATING WHICH, WHEN SOLIDIFED, IMPARTS SUBSTANTIAL COMPRESSIVE STRENGTH. TO COUNTER SHEAR FORCES CERTAIN FILAMENTS MAY BE ARRANGED TO SLANT IN THE DIRECTION OF ANTICIPATED STRESS. SINCE THE FILAMENTS PASS THROUGH AND OVERLIE PORTIONS OF THE PANELS THEY EFFECTIVELY COUNTER DELAMINATION OR PEELING.
Inventors
- 👤 William L Mackie
- 👤 Edgar D Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:07
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/06; B64C1/12; B21; B21D; B21D47/00; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/10; B29C70/16; B29C70/24; B29K; B29K2309/00; B29K2309/08; B64C2001/0054; B64C2001/0063; B64C2001/0081; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/249921; Y10T428/249923
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |