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Patent US3700625A successfully refreshed from Google Patents.
US3700625A
Expired / Lapsed
US
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Flame-retarded olefin polymers and additive systems therefor
Assignee: Phillips Petroleum Co
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Filing: 1971-08-30
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Granted: 1972-10-24
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Expires: 1991-08-30
Abstract
Abstract FLAME-RETARDED OLEFIN POLYMERS ARE PROVIDED BY ADMIXING WITH THE POLYMER A FLAME-RETARDANT ADDITIVE SYSTEM WHICH CONSISTS ESSENTIALLY OF (A) A COMPOUND OF THE FORMULA BRCH2-C(-CH2BR)2-CH2-O-(CH2-C(-CH2BR)2-CH2-O)N-CH2- C(-CH2BR)3 WHEREIN N IS 0 TO 5 AND (B) ANTIMONY TRIOXIDE.
Inventors
- 👤 Donnie G Brady
- 👤 Ernest A Zuech
- 👤 Roy A Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:53
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |