US2588412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil compositions
Assignee: Gulf Research and Development Co
•
Filing: 1948-09-16
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Granted: 1952-03-11
•
Expires: 1968-09-16
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocchini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2223/00; C10M2223/10; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN IMPROVED MINERAL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL OIL AND DISSOLVED IN SAID OIL A MINOR AMOUNT OF A WATERINSOLUBLE REACTION PRODUCT OBTAINED BY A PROCESS COMPRISING MAINTAINING A MIXTURE OF ABOUT EQUIMOLECULAR QUANTITIES OF MIXED ALKENYL-SUBSTITUTED SUCCINIC ACID ANHYDRIDES IN WHICH THE ALKENYL SUBSTITUENTS CONTAIN AN AVERAGE OF ABOUT 10 TO 12 CARBON ATOMS AND AN AMINE SELECTED FROM THE GROUP CONSISTING OF TRIMETHYLAMINE, TRIETHYLAMINE, TRIMYLAMINE, TRIETHANOLAMINE, TRIBENZYLAMINE, TRISTEARYL-TRIETHANOLAMINE, TRIETHANOLAMINE-ETHYLPHOSPHATIDIC ACID AND PYRIDINE, AT AN ELEVATED REAFTION TEMPERATURE OF ABOUT 250* F. FOR ABOUT 5 MINUTES, THE AMOUNT OF SAID REACTION PRODUCT BEING SUFFICIENT TO IMPART CORROSION-INHIBITING PROPERTIES TO SAID COMPOSITION.
Claim 2
Dependent Claim
106 words
AN IMPROVED MINERAL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL OIL AND DISSOLVED IN SAID OIL A MINOR AMOUNT OF A WATERINSOLUBLE REACTION PRODUCT OBTAINED BY A PROCESS COMPRISING MAINTAINING A MIXTURE OF ABOUT EQUIMOLECULAR QUANTITIES OF MIXED ALKENYL-SUBSTITUTED SUCCINIC ACID ANHYDRIDES IN WHICH THE ALKENYL SUBSTITUENTS CONTAIN AN AVERAGE OF ABOUT 10 TO 12 CARBON ATOMS AND AN AMINE SELECTED FROM THE GROUP CONSISTING OF TRIMETHYLAMINE, TRIETHYLAMINE, TRIMYLAMINE, TRIETHANOLAMINE, TRIBENZYLAMINE, TRISTEARYL-TRIETHANOLAMINE, TRIETHANOLAMINE-ETHYLPHOSPHATIDIC ACID AND PYRIDINE, AT AN ELEVATED REAFTION TEMPERATURE OF ABOUT 250* F. FOR ABOUT 5 MINUTES, THE AMOUNT OF SAID REACTION PRODUCT BEING SUFFICIENT TO IMPART CORROSION-INHIBITING PROPERTIES TO SAID COMPOSITION.
References Cited (Backward Citations)
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US2109941A
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US2342114A
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US2417833A
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US2481585A
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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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |