Patent US2688595A successfully refreshed from Google Patents.
US2688595A
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Lubricants
Assignee: Standard Oil Co
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Filing: 1949-11-23
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Granted: 1954-09-07
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Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Fainman Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:51
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/24; C10M2215/26; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A COMPOSITION COMPRISING ESSENTIALLY A MAJOR PROPORTION OF AN OIL AND AN OIL-SOLUBLE AROMATIC AMINO SALT OBTAINED BY REACTING AN ARYLOL CARBOXYLIC ACID ETHER WITH AN AROMATIC AMINO COMPOUND SELECTED FROM THE CLASS CONSISTING OF A NAPHHYLAMINE, A PHENYLENEDIAMINE AND PP'' DIAMINO DIPHENYL METHANE, SAID SALT BEING USED IN SMALL BUT SUFFICIENT AMOUNTS TO INHIBIT THE OXIDATIVE DETERIORATION OF SAID OIL AND TO IMPART A CORROSION-INHIBITING PROPERTY TO SAID OIL.
Claim 2
Dependent Claim
70 words
A COMPOSITION COMPRISING ESSENTIALLY A MAJOR PROPORTION OF AN OIL AND AN OIL-SOLUBLE AROMATIC AMINO SALT OBTAINED BY REACTING AN ARYLOL CARBOXYLIC ACID ETHER WITH AN AROMATIC AMINO COMPOUND SELECTED FROM THE CLASS CONSISTING OF A NAPHHYLAMINE, A PHENYLENEDIAMINE AND PP'' DIAMINO DIPHENYL METHANE, SAID SALT BEING USED IN SMALL BUT SUFFICIENT AMOUNTS TO INHIBIT THE OXIDATIVE DETERIORATION OF SAID OIL AND TO IMPART A CORROSION-INHIBITING PROPERTY TO SAID OIL.
References Cited (Backward Citations)
US2252665A
Cited
US2198293A
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US2426496A
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US2447483A
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US2470276A
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US2459717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |