US3236774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antioxidant composition and synthetic lubricant containing it
Assignee: Eastman Kodak Co
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Filing: 1962-08-10
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Granted: 1966-02-22
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 John W Thompson
- 👤 Gerald S Cassell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:43
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C09K15/322; C10; C10M; C10M3/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN ANTIOXIDANT COMPOSITION COMPRISIN A MIXTURE CONSISTING ESSENTIALLY OF (1) AN ARYLAMINE ANTIOXIDANT PORTION CONSISTING ESSENTIALLY OF (A) N-ALKYLPHENOTHIAZINE WHEREIN THE N-ALKYL GROUP HAS 1-18 CARBON ATOMS AND (B) P,P''-DIALKYLDIPHENYLAMINE WHEREIN THE P AND P''-ALKYL GROUPS EACH HAVE 1-18 CARBON ATOMS, THE WEIGHT RATION OF THE (-ALKYL-PHENOTHIAZINE TO THE P,P''-DIALKYLDIPHENYLAMINE BEING IN A RANGE FROM ABOUT 1:3 TO ABOUT 3:1, AND (2) AN ACIDIC PHOSPHORUS PORTION CONSISITING ESSENTIALLY OF AT LEAST ONE ACIDIC PHOSPHORUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALKYL ACID PHOSPHATE WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 10 CARBON ATOMS, OPHOSPHORIC ACID, DIPHENYL HYDROGEN PHOSPHATE, DIETHYL HYDROGEN PHOSPHITE, BIS(2-ETHYLTHEXYL)HYDROGEN PHOSPHITE AND 2,2-DIMETHYL-1,3-PROPANEDIOL-CYCLIC-HYDROGENPHOSPHITE, THE CONCENTRATION OF SAID ARYLAMINE ANTIOXIDANT PORTION BEING IN A RANGE FROM ABOUT 95.3 TO ABOUT 99.95% BY WEIGHT OF SAID MIXTURE AND THE CONCENTRATION OF SAID ACIDIC PHOSPHORUS PORTION BEING IN A RANGE FROM ABOUT 0.05 TO ABOUT 4.7% BY WEIGHT OF SAID MIXTURE.
Claim 2
Dependent Claim
153 words
AN ANTIOXIDANT COMPOSITION COMPRISIN A MIXTURE CONSISTING ESSENTIALLY OF (1) AN ARYLAMINE ANTIOXIDANT PORTION CONSISTING ESSENTIALLY OF (A) N-ALKYLPHENOTHIAZINE WHEREIN THE N-ALKYL GROUP HAS 1-18 CARBON ATOMS AND (B) P,P''-DIALKYLDIPHENYLAMINE WHEREIN THE P AND P''-ALKYL GROUPS EACH HAVE 1-18 CARBON ATOMS, THE WEIGHT RATION OF THE (-ALKYL-PHENOTHIAZINE TO THE P,P''-DIALKYLDIPHENYLAMINE BEING IN A RANGE FROM ABOUT 1:3 TO ABOUT 3:1, AND (2) AN ACIDIC PHOSPHORUS PORTION CONSISITING ESSENTIALLY OF AT LEAST ONE ACIDIC PHOSPHORUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALKYL ACID PHOSPHATE WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 10 CARBON ATOMS, OPHOSPHORIC ACID, DIPHENYL HYDROGEN PHOSPHATE, DIETHYL HYDROGEN PHOSPHITE, BIS(2-ETHYLTHEXYL)HYDROGEN PHOSPHITE AND 2,2-DIMETHYL-1,3-PROPANEDIOL-CYCLIC-HYDROGENPHOSPHITE, THE CONCENTRATION OF SAID ARYLAMINE ANTIOXIDANT PORTION BEING IN A RANGE FROM ABOUT 95.3 TO ABOUT 99.95% BY WEIGHT OF SAID MIXTURE AND THE CONCENTRATION OF SAID ACIDIC PHOSPHORUS PORTION BEING IN A RANGE FROM ABOUT 0.05 TO ABOUT 4.7% BY WEIGHT OF SAID MIXTURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |