Patent US2750340A successfully refreshed from Google Patents.
US2750340A
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Combination additive for petroleum products
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-08-31
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Granted: 1956-06-12
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Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Philip B Gerhardt
- 👤 Jr John O Smith
- 👤 Allen R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:04
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10M; C10M1/00; C10M1/08; C10L1/18; C10L1/182; C10L1/183; C10L1/1832; C10L1/1835; C10L1/185; C10L1/1852; C10L1/188; C10L1/1886; C10L1/22; C10L1/222; C10L1/223; C10L1/24; C10L1/2443; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/10; C10M2205/00; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/024; C10M2207/025; C10M2207/026; C10M2207/027; C10M2207/04; C10M2207/044; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2219/09; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10N; C10N2040/00; C10N2040/06; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; 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
87 words
A LIQUID HYDROCARBON MATERIAL SUSCEPTIBLE TO OXIDATION CONTAINING A CORROSION-INHIBITING AMOUNT OF ZINC NAPHTHENATE AND AN OXIDATION-INHIBITING AMOUNT IN THE RANGE OF ABOUT 0.01 TO 5% BY WEIGHT, BASED ON THE TOTAL COMPOSITION, OF A MIXTURE OF BENZENE SULFONYL LUTIDINIUM CHLORIDE AND A SECONDARY OXIDATION INHIBITOR SELECTED FROM THE GROUP CONSISTING OF 2,6-DI-TERT-BUTYL-4-METHYLPHENOL, PHENYL ALPHA NAPHTHYLAMINE, 2-TERT-BUTYL-4-METHOXYPHENOL, AND BIS (2-HYDROXY-3-TERT-BUTYL-5-METHYLPHENYL) METHANEL, THE RATIO OF SAID BENZENE SULFONYL LUTIDINIUM CHLORIDE TO SAID SECONDARY OXIDATION INHIBITOR BEING IN THE RANGE OF ABOUT 0.1 TO 5 ON A WEIGHT BASIS.
Claim 2
Dependent Claim
87 words
A LIQUID HYDROCARBON MATERIAL SUSCEPTIBLE TO OXIDATION CONTAINING A CORROSION-INHIBITING AMOUNT OF ZINC NAPHTHENATE AND AN OXIDATION-INHIBITING AMOUNT IN THE RANGE OF ABOUT 0.01 TO 5% BY WEIGHT, BASED ON THE TOTAL COMPOSITION, OF A MIXTURE OF BENZENE SULFONYL LUTIDINIUM CHLORIDE AND A SECONDARY OXIDATION INHIBITOR SELECTED FROM THE GROUP CONSISTING OF 2,6-DI-TERT-BUTYL-4-METHYLPHENOL, PHENYL ALPHA NAPHTHYLAMINE, 2-TERT-BUTYL-4-METHOXYPHENOL, AND BIS (2-HYDROXY-3-TERT-BUTYL-5-METHYLPHENYL) METHANEL, THE RATIO OF SAID BENZENE SULFONYL LUTIDINIUM CHLORIDE TO SAID SECONDARY OXIDATION INHIBITOR BEING IN THE RANGE OF ABOUT 0.1 TO 5 ON A WEIGHT BASIS.
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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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |