US2950250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone lubricating oil composition containing ester for improved lubricity and thermal stability
Assignee: Standard Oil Co
•
Filing: 1956-02-29
•
Granted: 1960-08-23
•
Expires: 1976-02-29
Abstract
No abstract record available.
Inventors
- 👤 Morton Z Fainman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:29
CPC Classifications
C; C10; C10M; C10M111/00; C10M111/04; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A LUBRICANT COMPOSITION COMPRISING AT LEAST 25% OF A SILICONE OIL HAVING THE GENERAL STRUCTURE
Claim 2
Dependent Claim
15 words
A LUBRICANT COMPOSITION COMPRISING AT LEAST 25% OF A SILICONE OIL HAVING THE GENERAL STRUCTURE
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) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |