US3738959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retarded olefin polymer compositions
Assignee: Wyeth Holdings LLC
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Filing: 1972-05-22
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Granted: 1973-06-12
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Expires: 1992-05-22
Abstract
Abstract FLAME-RETARDED COMPOSITIONS COMPRISING AN OLEFIN POLYMER HAVING INCORPORATED THEREIN (1) ETHYLENEBIS(TRIS(2CYANOETHYL))PHOSPHONIUM BROMIDE, (2) AMMONIUM POLYPHOSPHATE, (3) TITANIUM DIOXIDE OR SILICON DIOXIDE AND (4) A COMPOUND HAVING AN -SI- LINKAGE THEREIN, ARE DISCLOSED.
Inventors
- 👤 C Savides
- 👤 P Susi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08K5/5445; C08K13/00; C08K13/02; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/32; C08K3/34; C08K3/36; C08K5/49; C08K5/50; C08K5/541; C08K5/5415; C08K5/5419; C08K2003/2237; C08K2003/2241; C08K2003/321; C08K2003/322; C08K2003/323
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |