US3582518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant composition comprising polyvinylidene fluoride,antimony oxide and dehydrofluorination catalyst
Assignee: Raychem Corp
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Filing: 1968-03-07
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Granted: 1971-06-01
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Expires: 1988-03-07
Abstract
Abstract POLYMERS ARE FLAME-RETARDED BY INCORPORATING INTO THE POLYMER A POLYVINYLIDENE FLUORIDE, ANTIMONY OXIDE AND A METAL ACTIVATOR SUCH AS METAL COMPOUNDS WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, TITANIUM, ZIRCONIUM HAFNIUM, COLUMBIUM, TANTALUM, TUNGSTEN, BORON, CHROMIUM, MOLYBDENUM AND NICKEL.
Inventors
- 👤 Bernard John Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/2279; C08L; C08L75/00; C08L75/04
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |