US3629128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of chlorinated hydrocarbons
Assignee: Ethyl Corp
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Filing: 1968-06-26
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Granted: 1971-12-21
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Expires: 1988-06-26
Abstract
Abstract STABILIZED METHYL CHLOROFORM AND METHOD FOR STABILIZING METHYL CHLOROFORM AGAINST THE FORMATION OF ACIDIC PRODUCTS THEREIN BY SUPPLYING THERETO 1,4-DIOXANE, NITROMETHANE, BUTYLENE OXIDE, N-METHYLPYRROLE, AND AN AMINE SELECTED FROM DIISOPROPYLAMINE, DIALLYLAMINE, ISOBUTYLAMINE AND N-BUTYLAMINE.
Inventors
- 👤 John Henry Rains
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:45
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02883; C23G5/0289; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |