US2946749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open gear lubricants containing silicones
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-03-28
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Granted: 1960-07-26
•
Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Lorne W Sproule
- 👤 Thomas M Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:36
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/10; C10M2201/105; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/08; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A GEAR LUBRICANT COMPOSITION HAVING A GREASE CONSISTENCY CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A VISCOUS MINERAL LUBRICATIG BASE HAVING AN S.U.S. VISCOSITY AT 210*F. IN THE RANGE OF ABOUT 1,000 TO 6,00, AND IN THE RANGE OF ABOUT 0.05 TO 1.5% BY WEIGHT, BASED ON THE TOTAL LUBRICANT COMPOSITION, OF A SILICONE COMPOSITION CONSISTING ESSENTIALLY OF (1) DIMETHYL SILICONE POLYMER HAVING AN S.U.S. VISCOSITY AT 210*F. IN THE RANGE OF ABOUT 300 TO 3,000 AND (2) IN THE RANGE OF ABOUT 4.0 TO 20.0 WT. PERCENT, BASED ON THE SILICONE COMPOSITION, OF FINELYDIVIDED SILICA.
Claim 2
Dependent Claim
96 words
A GEAR LUBRICANT COMPOSITION HAVING A GREASE CONSISTENCY CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A VISCOUS MINERAL LUBRICATIG BASE HAVING AN S.U.S. VISCOSITY AT 210*F. IN THE RANGE OF ABOUT 1,000 TO 6,00, AND IN THE RANGE OF ABOUT 0.05 TO 1.5% BY WEIGHT, BASED ON THE TOTAL LUBRICANT COMPOSITION, OF A SILICONE COMPOSITION CONSISTING ESSENTIALLY OF (1) DIMETHYL SILICONE POLYMER HAVING AN S.U.S. VISCOSITY AT 210*F. IN THE RANGE OF ABOUT 300 TO 3,000 AND (2) IN THE RANGE OF ABOUT 4.0 TO 20.0 WT. PERCENT, BASED ON THE SILICONE COMPOSITION, OF FINELYDIVIDED SILICA.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |