US2738330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounded lubricating oil
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-11-15
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Granted: 1956-03-13
•
Expires: 1971-11-15
Abstract
No abstract record available.
Inventors
- 👤 Max W Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:01
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/108; C10M2219/00; C10M2219/08; C10M2219/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A MOTOR OIL COMPOSITION FOR USE IN THE LUBRICATION OF INTERNAL COMBUSTION ENGINES EMPLOYING LEADED FUELS, WHICH CONTAINS A LEAD DISPERSING AMOUNT OF A PRIMARY ALIPHATIC MERCAPTAN HAVING IN THE RANGE OF 10 TO 30 CARBON ATOMS, SAID LEAD-DISPERSING AMOUNT BEING IN THE RANGE OF ABOUT 1 TO 15% BY WEIGHT BASED ON THE TOTAL OIL COMPOSITION.
Claim 2
Dependent Claim
57 words
A MOTOR OIL COMPOSITION FOR USE IN THE LUBRICATION OF INTERNAL COMBUSTION ENGINES EMPLOYING LEADED FUELS, WHICH CONTAINS A LEAD DISPERSING AMOUNT OF A PRIMARY ALIPHATIC MERCAPTAN HAVING IN THE RANGE OF 10 TO 30 CARBON ATOMS, SAID LEAD-DISPERSING AMOUNT BEING IN THE RANGE OF ABOUT 1 TO 15% BY WEIGHT BASED ON THE TOTAL OIL COMPOSITION.
References Cited (Backward Citations)
US1966050A
Cited
US2581092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |