US3910977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salts of antimony (V) esters as flame retardants
Assignee: EIDP Inc
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Filing: 1974-01-22
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Granted: 1975-10-07
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Expires: 1994-01-22
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
- 👤 Richard Norris Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:24
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/90; C07F9/902; C08; C08L; C08L101/00; C08L101/02; C08L101/04; D; D06; D06M; D06M13/00; D06M13/50; D06M13/503
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
THE DIVALENT ZINC SALT OF TRI(ETHYLENEDIOXY)HYDROGEN ANTRIMONY (V)
Claim 2
Dependent Claim
8 words
THE DIVALENT ZINC SALT OF TRI(ETHYLENEDIOXY)HYDROGEN ANTRIMONY (V)
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |