US3702833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable fluorophosphazene polymers
Assignee: Horizons Research Inc
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Filing: 1970-05-01
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Granted: 1972-11-14
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Expires: 1990-05-01
Abstract
Abstract IMPROVED P-N POLYMERS IN WHICH AT LEAST SOME OF THE GROUPS ATTACHED TO THE P ATOM CONTAIN REACTIVE SITES WHEREBY THE PROPERTIES AND THE POLYMER MAY BE MODIFIED BY CROSSLINKING AND/OR CURING.
Inventors
- 👤 Selwyn H Rose
- 👤 Kennard A Reynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
C; C08; C08L; C08L85/00; C08L85/02; C08G; C08G79/00; C08G79/02; C08G79/025
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |