US3779984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated carbonates as fire retardants for polyesters
Assignee: Dow Chemical Co
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Filing: 1972-07-14
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Granted: 1973-12-18
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Expires: 1992-07-14
Abstract
Abstract NEW HALOGENATED CARBONATES CONTAINING HALOGENATED NEOPENTYL GROUPS HAVE BEEN FOUND WHICH ARE EXTREMELY USEFUL AS FIRE RETARDANT ADDITIVES FOR POLYESTERS.
Inventors
- 👤 J Exner
- 👤 E Larsen
- 👤 J Gunsher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:17
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/109; C08L; C08L67/00; C08L67/02; C08L69/00
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |