Patent US2497099A successfully refreshed from Google Patents.
US2497099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition agents for mineral oil lubricants and compositions containing the same
Assignee: Gulf Oil Corp
•
Filing: 1947-06-12
•
Granted: 1950-02-14
•
Expires: 1967-06-12
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:07
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO CONFER DETERGENT PROPERTIES ON THE COMPOSITION, OF A SUBSTANTIALLY NEUTRAL POLYVALENT METAL SALT OF A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
37 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO CONFER DETERGENT PROPERTIES ON THE COMPOSITION, OF A SUBSTANTIALLY NEUTRAL POLYVALENT METAL SALT OF A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2190732A
Cited
US2431011A
Cited
US2415833A
Cited
US2414729A
Cited
US2434396A
Cited
US2383134A
Cited
US2420893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |