Patent US3577294A successfully refreshed from Google Patents.
US3577294A
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Method for making 3-d filament reinforced articles
Assignee: Individual
•
Filing: 1969-03-17
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Granted: 1971-05-04
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Expires: 1989-03-17
Abstract
Abstract METHOD AND APPARATUS FOR MAKING 3-D FILAMENT REINFORCED SHELLS BY SECURING SHORT REINFORCING FIBERS ONTO A FORM WHICH FIBERS PROJECT IN A SUBSTANTIALLY NORMAL DIRECTION FROM THE SURFACE OF THE FORM, AND WINDING IN HELICAL ARRANGEMENT STRANDS COATED WITH PLASTIC RESIN ONTO THE FORM EITHER AS INDIVIDUAL STRANDS OR AS TAPES FORMED BY A PLURALITY OF STRANDS, WHICH STRANDS ARE SUBSTANTIALLY NORMAL TO THE FIBERS.
Inventors
- 👤 Constant David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/82; B29C53/821; B29C53/822; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/12; B29B15/122; B29B15/125; B29C33/00; B29C33/44; B29C33/52; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/24; D; D04; D04H; D04H3/00; D04H3/02; D04H3/07; F; F02; F02K; F02K9/00; F02K9/97; F02K9/974; F05; F05D; F05D2250/00; F05D2250/20
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |