US3836557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salts of antimony (v) esters as flame retardants
Assignee: EIDP Inc
•
Filing: 1971-12-03
•
Granted: 1974-09-17
•
Expires: 1991-12-03
Abstract
Abstract WATER SOLUBLE SALTS OF ANTIMONY (V) GLYCOL ESTERS ARE USEFUL FLAME RETARDANTS FOR SUCH MATERIALS AS TEXTILES OR POLYMERIC RESINS. THESE FLAME RETARDANTS ARE APPLIED TOGETHER WITH A SOURCE OF ORGANIC HALOGEN. A TYPICAL SUCH SALT IS TRI(ETHYLENEDIOXY)HYDROGEN ANTIMONY (V), SODIUM SALT.
Inventors
- 👤 R Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:58
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/90; C07F9/902; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |