US3804792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retardant plasticizers
Assignee: Dow Chemical Co
•
Filing: 1972-07-27
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Granted: 1974-04-16
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Expires: 1992-07-27
Abstract
Abstract COMPOUNDS HAVING THE GENERAL FROMULA ROCH2C(CH2X)2CH2OR WHEREIN R IS THE ACYL RADICAL OF A CARBONIC OR A SATURATED ALIPHATIC MONOCARBOXYLIC ACID HAVING FROM 2 TO 6 CARBON ATOMS FREE OF SUBSTITUENTS OTHER THAN CHLORINE OR BROMINE AND EACH X IS INDEPENDENTLY CL OR BR ARE EXCELLENT FIRE RETARDING PLASTICIZERS FOR VINYL CHLORIDE POLYMERS, EITHER ALONE OR IN COMBINATION WITH NONHALOGENATED PLSTICIZERS.
Inventors
- 👤 R Pews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:12
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; Y; Y10; Y10S; Y10S260/00; Y10S260/24
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) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |