US3849083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline additive
Assignee: Ethyl Corp
•
Filing: 1972-04-14
•
Granted: 1974-11-19
•
Expires: 1992-04-14
Abstract
Abstract Gasoline containing ether amines as carburetor detergents; and ether amine additive concentrates.
Inventors
- 👤 M Dubeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:11
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
24 words
GASOLINE CONTAINING A CARBURETOR DETERGENT AMOUNT OF AN ETHER AMINE HAVING THE FORMULA R-O-L-NH2 WHEREIN R IS C1-C40 ALKYL AND L IS C2-C8 ALKYLENE.
Claim 2
Dependent Claim
24 words
GASOLINE CONTAINING A CARBURETOR DETERGENT AMOUNT OF AN ETHER AMINE HAVING THE FORMULA R-O-L-NH2 WHEREIN R IS C1-C40 ALKYL AND L IS C2-C8 ALKYLENE.
Claim 3
Dependent Claim
10 words
The gasoline of claim 1 wherein R is C4-C30 alkyl.
Claim 4
Dependent Claim
9 words
The gasoline of claim 1 wherein L is -CH2-CH2-CH2-.
Claim 5
Dependent Claim
10 words
The gasoline of claim 3 wherein R is C4-C30 alkyl.
Claim 6
Dependent Claim
9 words
The gasoline of claim 4 wherein R is C8-C24.
Claim 7
Dependent Claim
14 words
The gasoline of claim 1 wherein R is a mixture of decyl and dodecyl.
Claim 8
Dependent Claim
15 words
The gasoline of claim 1 wherein R is derived from a mixture of C20 alkanols.
References Cited (Backward Citations)
US3478096A
Cited
US3637358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |