US2796336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic antioxidant composition and use
Assignee: Ethyl Corp
•
Filing: 1953-03-23
•
Granted: 1957-06-18
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Oldenburg Edgar Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:40
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10L1/223; C10L1/2235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
OLEFIN-CONTAINING GASOLINE NORMALLY TENDING TO DETERIORATE IN THE PRESENCE OF OXYGEN CONTAINIG ABOUT 0.00375 TO ABOUT 0.01 PERCENT BY WEIGHT OF A MIXTURE OF AN N,N''-DIALKYL-P-PHENYLENE DIAMINE WHEREIN THE ALKYL GROUPS EACH CONTAIN UP TO ABOUT 8 CARBON ATOMS AND A BIS-(DIALKYLAMINOALKYL)-HYDROQUINONE HAVING NO MORE THAN 4 CARBON ATOMS IN EACH OF THE ALKYL GROUPS, SAID PHENYLENE DIAMINE BEING FROMA ABOUT 25 TO 80 PERCENT BY WEIGHT OF SAID MIXTURE.
Claim 2
Dependent Claim
70 words
OLEFIN-CONTAINING GASOLINE NORMALLY TENDING TO DETERIORATE IN THE PRESENCE OF OXYGEN CONTAINIG ABOUT 0.00375 TO ABOUT 0.01 PERCENT BY WEIGHT OF A MIXTURE OF AN N,N''-DIALKYL-P-PHENYLENE DIAMINE WHEREIN THE ALKYL GROUPS EACH CONTAIN UP TO ABOUT 8 CARBON ATOMS AND A BIS-(DIALKYLAMINOALKYL)-HYDROQUINONE HAVING NO MORE THAN 4 CARBON ATOMS IN EACH OF THE ALKYL GROUPS, SAID PHENYLENE DIAMINE BEING FROMA ABOUT 25 TO 80 PERCENT BY WEIGHT OF SAID MIXTURE.
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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |