US2676149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized grease composition containing a sterol and a selenium compound
Assignee: Shell Development Co
•
Filing: 1951-12-29
•
Granted: 1954-04-20
•
Expires: 1971-12-29
Abstract
No abstract record available.
Inventors
- 👤 Harold A Woods
- 👤 John A Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/063; C10M2201/10; C10M2201/105; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2219/00; C10M2219/04; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/084; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/061; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL, A GREASE-FORMING PROPORTION OF A GELLING AGENT, AND MINOR AMOUNTS, BUT SUFFICIENT TO INCREASE THE OPERATING LIFE OF SAID GREASE, OF A STEROL AND OF A COMPOUND OF THE TYPE
Claim 2
Dependent Claim
41 words
A GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL, A GREASE-FORMING PROPORTION OF A GELLING AGENT, AND MINOR AMOUNTS, BUT SUFFICIENT TO INCREASE THE OPERATING LIFE OF SAID GREASE, OF A STEROL AND OF A COMPOUND OF THE TYPE
References Cited (Backward Citations)
US2398415A
Cited
US2556289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |