US3758439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ster and polymer of acrylonitrile ester and polymer of acrylonitrile thermosetting compositions containing monomeric hydroxyalkyl acrylic
Assignee: Phillips Petroleum Co
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Filing: 1971-04-23
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Granted: 1973-09-11
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Expires: 1991-04-23
Abstract
Abstract THERMOSETTING COMPOSITIONS COMPRISING A POLYMER OF ACRYLONITRILE AND A HYDROXYALKYL ESTER OF AN UNSATURATED ACID ARE READILY CONVERTED TO NOVEL THERMOSET RESINS AT ELEVATED TEMPERATURES AND PRESSURES IN THE PRESENCE OF FREE RADICAL INITIATORS.
Inventors
- 👤 L Fodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:20
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/08; C08F279/00; C08F279/02
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |