Patent US2797152A successfully refreshed from Google Patents.
US2797152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline antioxidants
Assignee: Standard Oil Co
•
Filing: 1954-03-29
•
Granted: 1957-06-25
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Everett C Hughes
- 👤 Samuel M Darling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:34
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/2235
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A FUEL COMPRISING CRACKED PETROLEUM DISTILLATE AS THE MAJOR COMPONENT, TETRAETHYL LEAD, BUTANE AND SMALL AMOUNT SUFFICIENT TO INHABIT GUM FORMATION OF A COMPOUND HAAVING THE GENERAL FORMULA:
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) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |