Patent US3663437A successfully refreshed from Google Patents.
US3663437A
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Semi-fluid lubricant compositions
Assignee: Shell USA Inc
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Filing: 1969-11-19
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Granted: 1972-05-16
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Expires: 1989-11-19
Abstract
Abstract LUBRICANT COMPOSITION COMPRISING A SYNTHETIC BASE FLUID OF A POLYOXY-ALKYLENE COMPOUND GELLED TO A SEMIFLUID CONSISTENCY, HAVING A PENETRATION VALUE WITHIN THE RANGE OF ABOUT 350 TO ABOUT 450, REDUCE LUBICANT LOSS FROM IMPERFECT GEAR-BOX SEALS ETC. AND POSSES GOOD OXIDATION AND GOOD SLIP PROPERTIES.
Inventors
- 👤 Howard D Moore
- 👤 Ernest L Padmore
- 👤 John Whittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:56
CPC Classifications
C; C10; C10M; C10M3/00; C10M2201/00; C10M2201/14; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/06; C10M2223/063; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/02
Claims Analysis
Total Claims: 0
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |