Patent US3067137A successfully refreshed from Google Patents.
US3067137A
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Lubricant compositions containing 9-amino acridines
Assignee: Shell USA Inc
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Filing: 1959-04-29
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Granted: 1962-12-04
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Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 Donald W Schmulling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:49
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07D; C07D219/00; C07D219/04; C07D219/08; C07D219/10; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2201/14; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/101; C10M2209/103; C10M2209/107; C10M2209/109; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/068; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF AN ALIPHATIC POLYESTER LUBRICANT AND A MINOR PROPORTION, SUFFICIENT TO IMPROVE THE OXIDATION RESISTANCE OF THE LUBRICANT OF A 9-AMINOACRIDINE SELECTED FROM THE GROUP CONSISTING OF 9-AMINOACRIDINE, A 9-(N-ARYLAMINO)ACRIDINE, A 9-(N-PHENYLAMINO)ACRIDINE, AND A 9-(N-BETANAPHTHYLAMINO) ACRIDINE.
Claim 2
Dependent Claim
43 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF AN ALIPHATIC POLYESTER LUBRICANT AND A MINOR PROPORTION, SUFFICIENT TO IMPROVE THE OXIDATION RESISTANCE OF THE LUBRICANT OF A 9-AMINOACRIDINE SELECTED FROM THE GROUP CONSISTING OF 9-AMINOACRIDINE, A 9-(N-ARYLAMINO)ACRIDINE, A 9-(N-PHENYLAMINO)ACRIDINE, AND A 9-(N-BETANAPHTHYLAMINO) ACRIDINE.
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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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |