Patent US2848417A successfully refreshed from Google Patents.
US2848417A
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Extreme high temperature grease compositions
Assignee: Shell Development Co
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Filing: 1955-08-15
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Granted: 1958-08-19
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Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jack W Armstrong
- 👤 Harold A Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:08
CPC Classifications
C; C10; C10M; C10M5/00; B; B23; B23K; B23K9/00; B23K9/18; C10M7/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/063; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2207/00; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/142; C10M2207/28; C10M2207/282; C10M2207/34; C10M2211/00; C10M2211/02; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/068; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10M2229/051; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A GREASE COMPOSITION HAVING LUBRICATING PROPERTIES WHICH COMPRISES A MAJOR PROPORTION OF AN OLEAGINOUS LUBRICATING LIQUID AND BETWEEN ABOUT 10% AND ABOUT 60%, BY WEIGHT, OF AN INDANTHRENE COMPOUND MELTING ABOVE ABOUT 250*F. SAID LIQUID AND COMPOUND BEING MILLED SUFFICIENTLY TO PRODUCE A COMPOSITION OF GREASELIKE CONSISTENCY.
Claim 2
Dependent Claim
47 words
A GREASE COMPOSITION HAVING LUBRICATING PROPERTIES WHICH COMPRISES A MAJOR PROPORTION OF AN OLEAGINOUS LUBRICATING LIQUID AND BETWEEN ABOUT 10% AND ABOUT 60%, BY WEIGHT, OF AN INDANTHRENE COMPOUND MELTING ABOVE ABOUT 250*F. SAID LIQUID AND COMPOUND BEING MILLED SUFFICIENTLY TO PRODUCE A COMPOSITION OF GREASELIKE CONSISTENCY.
References Cited (Backward Citations)
US2136885A
Cited
US2676149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |