US3766129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-impregnated materials
Assignee: Renault SA
•
Filing: 1971-07-09
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Granted: 1973-10-16
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Expires: 1991-07-09
Abstract
Abstract PRE-IMPREGNATED MATERIALS OF REINFORCING FIBERS IMPREGNATED WITH A COMPOSITION FORMED OF A COPOLYMERIZABLE POLYESTER RESIN FORMED OF 50-98% BY WEIGHT OF A COPOLYMERIZABLE POLYESTER RESIN AND 50-2% BY WEIGHT OF A SOLUTION OF AN OLIGOESTER HAVING TERMINAL MALEIC ACID GROUPS AND CONTAINING A POLYMERICATION INITIATOR IN AN AMOUNT WITHIN THE FRANGE OF 0.5-2% BY WEIGHT AND AN OXIDE OR HYDROXIDE OF A METAL OF GROUP II OF THE PERIODIC CLASSIFICATION OF ELEMENTS IN AN AMOUNT WITHIN THE RANGE OF 1-10% BY WEIGHT.
Inventors
- 👤 G Pesez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08K; C08K7/00; C08K7/02; C08L; C08L67/00; C08L67/06
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |