US2495478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil composition
Assignee: ExxonMobil Oil Corp
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Filing: 1946-03-27
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Granted: 1950-01-24
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Expires: 1966-03-27
Abstract
No abstract record available.
Inventors
- 👤 Horace E Redman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:51
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/12; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A MINERAL OIL FRACTION CONTAINING A MINOR PROPORTION, FROM ABOUT 0.1 PERCENT TO ABOUT 10 PER CENT, OF AN OIL-SOLUBLE, METAL SALT OF AN ACIDIC, PHOSPHORUS-AND SULFUR-CONTAINING REACTION PRODUCT OBTAINED BY REACTION, AT A TEMPERATURE WITHIN THE RANGE VARYING BETWEEN ABOUT 100*C. AND ABOUT 175*C., OF A PHOSPHORUS SULFIDE AND AN AMINE SELECTED FROM THE GROUP CONSISTING OF AN ALKYL-NUCLEAR-SUBSTITUTED PRIMARY AND SECONDARY AROMATIC AMINE AND AN ALKYL-N-SUBSTITUTED SECONDARY AROMATIC AMINE, SAID ALKYL SUBSTITUTENT BEING CHARACTERIZED BY AT LEAST ABOUT 10 CARBON ATOMS.
Claim 2
Dependent Claim
83 words
A MINERAL OIL FRACTION CONTAINING A MINOR PROPORTION, FROM ABOUT 0.1 PERCENT TO ABOUT 10 PER CENT, OF AN OIL-SOLUBLE, METAL SALT OF AN ACIDIC, PHOSPHORUS-AND SULFUR-CONTAINING REACTION PRODUCT OBTAINED BY REACTION, AT A TEMPERATURE WITHIN THE RANGE VARYING BETWEEN ABOUT 100*C. AND ABOUT 175*C., OF A PHOSPHORUS SULFIDE AND AN AMINE SELECTED FROM THE GROUP CONSISTING OF AN ALKYL-NUCLEAR-SUBSTITUTED PRIMARY AND SECONDARY AROMATIC AMINE AND AN ALKYL-N-SUBSTITUTED SECONDARY AROMATIC AMINE, SAID ALKYL SUBSTITUTENT BEING CHARACTERIZED BY AT LEAST ABOUT 10 CARBON ATOMS.
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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |