Patent US3933657A successfully refreshed from Google Patents.
US3933657A
Expired / Lapsed
US
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Lubricant with synergistic extreme pressure additives
Assignee: Texaco Inc
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Filing: 1974-09-12
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Granted: 1976-01-20
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Expires: 1994-09-12
Abstract
Abstract A grease may be made having synergistic extreme pressure properties using a major amount of a base oil and a thickener and a minor amount of low density polyethylene and known extreme pressure enhancing additives.
Inventors
- 👤 Leonard S. Seni
- 👤 Arnold C. Witte
- 👤 Richard L. Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:34
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/063; C10M2201/065; C10M2201/066; C10M2201/14; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
30 words
A grease comprising a. a major amount of a lubricating oil, b. a thickener, c. polyethylene of density ranging between 0.910 and 0.925 g/cc and d. conventional extreme pressure agents.
Claim 2
Dependent Claim
30 words
A grease comprising a. a major amount of a lubricating oil, b. a thickener, c. polyethylene of density ranging between 0.910 and 0.925 g/cc and d. conventional extreme pressure agents.
Claim 3
Dependent Claim
19 words
A grease as in claim 1 wherein the conventional extreme pressure agents comprise molybdenum disulfide, lime, graphite and antimonydiamyldithiocarbamate.
Claim 4
Dependent Claim
17 words
A grease as in claim 1 wherein the conventional extreme pressure agents comprise molybdenum disulfide and antimonydiamyldithiocarbamate.
Claim 5
Dependent Claim
14 words
A grease as in claim 1 wherein the conventional extreme pressure agent comprises graphite.
Claim 6
Dependent Claim
18 words
A grease as in claim 1 wherein the conventional extreme pressure agents comprise molybdenum disulfide, graphite and antimonydiamyldithiocarbamate.
Claim 7
Dependent Claim
18 words
A grease as in claim 1 wherein the conventional extreme pressure agents comprise molybdenum disulfide, lime and antimonydiamyldithiocarbamate.
Claim 8
Dependent Claim
15 words
A grease as in claim 1 wherein the conventional extreme pressure agent comprises molybdenum disulfide.
Claim 9
Dependent Claim
14 words
A grease as in claim 1 wherein the conventional extreme pressure agent comprises lime.
Claim 10
Dependent Claim
14 words
A grease as in claim 1 wherein the conventional extreme pressure agent is anitmonydiamyldithiocarbamate.
References Cited (Backward Citations)
US3770634A
Cited
US3844955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |