Patent US3590014A successfully refreshed from Google Patents.
US3590014A
Expired / Lapsed
US
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Flame retardant foamed and foamable polymer compositions
Assignee: Monsanto Chemicals Ltd
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Filing: 1968-11-21
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Granted: 1971-06-29
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Expires: 1988-11-21
Abstract
Abstract FOAMABLE POLYMERS SUITABLE FOR THE PRODUCTION OF FLAME-RETARDANT FOAMED RESINS BY THE PREFOAM/STEAMMOLDING TECHNIQUE COMPRISE PARTICLES OF A FOAMABLE THERMOPLASTIC RESIN COATED WITH A MIXTURE OF A PENTABROMOPHENYL ALKENYL ETHER AND A TRIBROMOPHENYL ALKENYL ETHER.
Inventors
- 👤 Patrick Vivian Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:37
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J9/224
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |