US2693447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants containing metal salts of fatty acid derivatives of dithiocarbamic acid
Assignee: Standard Oil Co
•
Filing: 1952-06-27
•
Granted: 1954-11-02
•
Expires: 1972-06-27
Abstract
No abstract record available.
Inventors
- 👤 Robert E Karll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:09
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/04; C10N2010/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A LUBRICANT COMPOSITION COMPRISING A MINERAL LUBRICATING OIL AND FROM 0.005% TO 10% BY WEIGHT OF A COMPONENT HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
22 words
A LUBRICANT COMPOSITION COMPRISING A MINERAL LUBRICATING OIL AND FROM 0.005% TO 10% BY WEIGHT OF A COMPONENT HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2520280A
Cited
US2265851A
Cited
US2366539A
Cited
US2436051A
Cited
US2474839A
Cited
US2614987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |