US2795623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of chlorinated hydrocarbons
Assignee: EIDP Inc
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Filing: 1954-11-15
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Granted: 1957-06-11
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Fred W Starks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:22
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A LIGHT-STABLE COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A LIQUID CHLORINATED HYDROCARBON CARRYING FROM ABOUT 0.001% AND 1% BY WEIGHT OF N-METHYL PYRROLE TIVE STABILIZING AMOUNT OF A METAL CHELATE SOLUBLE IN SAID CHLORINATED HYDROCARBON SAID CHELATE CONSISTING OF A METAL OF THE GROUP CONSISTING OF COPPER AND ALUMINUM COMBINED WITH AN ORGANIC RADICAL FROM A MEMBER OF THE GROUP CONACID AND ESTERS OF ACETOACETIC ACID.
Claim 2
Dependent Claim
66 words
A LIGHT-STABLE COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A LIQUID CHLORINATED HYDROCARBON CARRYING FROM ABOUT 0.001% AND 1% BY WEIGHT OF N-METHYL PYRROLE TIVE STABILIZING AMOUNT OF A METAL CHELATE SOLUBLE IN SAID CHLORINATED HYDROCARBON SAID CHELATE CONSISTING OF A METAL OF THE GROUP CONSISTING OF COPPER AND ALUMINUM COMBINED WITH AN ORGANIC RADICAL FROM A MEMBER OF THE GROUP CONACID AND ESTERS OF ACETOACETIC ACID.
References Cited (Backward Citations)
US2371645A
Cited
US2492048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |