US3307928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline additives for enhancing engine cleanliness
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-01-30
•
Granted: 1967-03-07
•
Expires: 1983-01-30
Abstract
No abstract record available.
Inventors
- 👤 Chaikivsky Michael
- 👤 John D Turner
- 👤 Louis N Calvino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:00
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C07F; C07F9/00; C07F9/02; C07F9/04; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/192; C10L1/198; C10L1/1983; C10L1/1985; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C10L1/24; C10L1/2431; C10L1/2437; C10L1/26; C10L1/2691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A MOTOR FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF A PETROLEUM DISTILLATE FUEL BOILING IN THE GASOLINE RANGE, A MINOR AMOUNT SUFFICIENT TO ENHANCE ENGINE CLEANLINESS, OF AN ADDITIVE COMBINATION COMPRISING: (A) A POLYOLEFIN SUCCINIMIDE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
39 words
A MOTOR FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF A PETROLEUM DISTILLATE FUEL BOILING IN THE GASOLINE RANGE, A MINOR AMOUNT SUFFICIENT TO ENHANCE ENGINE CLEANLINESS, OF AN ADDITIVE COMBINATION COMPRISING: (A) A POLYOLEFIN SUCCINIMIDE HAVING THE FOLLOWING FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |