US2614987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease compositions
Assignee: California Research LLC
•
Filing: 1950-12-07
•
Granted: 1952-10-21
•
Expires: 1970-12-07
Abstract
No abstract record available.
Inventors
- 👤 John L Dreher
- 👤 Crawford F Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:02
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/109; C10M2215/00; C10M2215/02; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2227/00; C10M2227/02; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PORTION OF A LUBRICATING OIL, A THICKENING AGENT, AND FROM ABOUT 0.1% TO ABOUT 5%, BY WEIGHT, OF A POLYVALENT METAL DITHIOCARBAMATE, AND FROM ABOUT 0.01% TO ABOUT 2% BY WEIGHT, OF A DIHYDROXYANTHRAQUINONE.
Claim 2
Dependent Claim
42 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PORTION OF A LUBRICATING OIL, A THICKENING AGENT, AND FROM ABOUT 0.1% TO ABOUT 5%, BY WEIGHT, OF A POLYVALENT METAL DITHIOCARBAMATE, AND FROM ABOUT 0.01% TO ABOUT 2% BY WEIGHT, OF A DIHYDROXYANTHRAQUINONE.
References Cited (Backward Citations)
US2053421A
Cited
US2016648A
Cited
US2160880A
Cited
US2214443A
Cited
US2338578A
Cited
US2400106A
Cited
US2504672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |