Patent US3037851A successfully refreshed from Google Patents.
US3037851A
Expired / Lapsed
US
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Stabilized leaded gasoline
Assignee: EIDP Inc
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Filing: 1956-06-28
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Granted: 1962-06-05
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Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harold J Scheule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:47
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/236; C10L1/2366; C10L1/2368
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
GASOLINE CONTAINING AN ANTIKNOCK QUANTITY OF TETRAETHYLLEAD AND FORM ABOUT 0.0003 TO ABOUT 0.01% BY WEIGHT OF A COPOLYMER OF OCTADECENYL METHACRYLATE, STYRENE AND BETA-DIETHYLAMINOETHYL METHACRYLATE, SAID COPOLYMER HAVING AN INHERENT VISCOSITY OF 0.1 TO 3.0 AS DETERMINED AT 0.1% WEIGHT/VOLUME CONCENTRATION IN BENZENE AT 25*C.
Claim 2
Dependent Claim
46 words
GASOLINE CONTAINING AN ANTIKNOCK QUANTITY OF TETRAETHYLLEAD AND FORM ABOUT 0.0003 TO ABOUT 0.01% BY WEIGHT OF A COPOLYMER OF OCTADECENYL METHACRYLATE, STYRENE AND BETA-DIETHYLAMINOETHYL METHACRYLATE, SAID COPOLYMER HAVING AN INHERENT VISCOSITY OF 0.1 TO 3.0 AS DETERMINED AT 0.1% WEIGHT/VOLUME CONCENTRATION IN BENZENE AT 25*C.
References Cited (Backward Citations)
US2469737A
Cited
US2737452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |