US2684893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline antioxidants
Assignee: Standard Oil Co
•
Filing: 1951-10-01
•
Granted: 1954-07-27
•
Expires: 1971-10-01
Abstract
No abstract record available.
Inventors
- 👤 Everett C Hughes
- 👤 Samuel M Darling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:54
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/2235
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
5 words
COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 3
Dependent Claim
31 words
A FUEL FOR INTERNAL COMBUSTION ENGINES COMPRISING A GUM FORMING GASOLINE AS THE MAJOR COMPONENT AND A SMALL AMOUNT SUFFICIENT TO INHIBIT GUM FORMATION OF A COMPOUND HAVING THE GENERAL FORMULA:
Claim 4
Dependent Claim
31 words
A FUEL FOR INTERNAL COMBUSTION ENGINES COMPRISING A GUM FORMING GASOLINE AS THE MAJOR COMPONENT AND A SMALL AMOUNT SUFFICIENT TO INHIBIT GUM FORMATION OF A COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2045323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |