US2981759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of chlorinated hydrocarbons with a synergistic combination of a tertiary acetylenic alcohol, dioxane, and a volatile basic organic nitrogen-containing organic compound
Assignee: Airco Inc
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Filing: 1956-02-08
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Granted: 1961-04-25
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Expires: 1976-02-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Gordon E Cole
- 👤 Charles O Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:17
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF TRICHLOROETHYLENE TENDING TO UNDERGO DEGRADATION WHEN EXPOSED TO HEAT, LIGHT AND AIR, AND A SMALL BUT STABILIZING AMOUNT OF DIOXANE AND A TERTIARY ACETYLENIC MONOHYDRIC ALCOHOL EFFECTIVE TO INHIBIT SAID DEGRATION.
Claim 2
Dependent Claim
38 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF TRICHLOROETHYLENE TENDING TO UNDERGO DEGRADATION WHEN EXPOSED TO HEAT, LIGHT AND AIR, AND A SMALL BUT STABILIZING AMOUNT OF DIOXANE AND A TERTIARY ACETYLENIC MONOHYDRIC ALCOHOL EFFECTIVE TO INHIBIT SAID DEGRATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |