US2529496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel having improved knock qualities
Assignee: Standard Oil Co
•
Filing: 1947-02-21
•
Granted: 1950-11-14
•
Expires: 1967-02-21
Abstract
No abstract record available.
Inventors
- 👤 Everett C Hughes
- 👤 Milton H Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:23
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/28; C10L1/285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
GASOLINE CONTAINING TETRAETHLY LEAD AND AN ORGANIC SILICON COMPOUND SOLUBLE IN THE FUEL IN AN AMOUNT UP TO 0.5 C. PER GALLON OF FUEL.
Claim 2
Dependent Claim
24 words
GASOLINE CONTAINING TETRAETHLY LEAD AND AN ORGANIC SILICON COMPOUND SOLUBLE IN THE FUEL IN AN AMOUNT UP TO 0.5 C. PER GALLON OF FUEL.
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) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |