Patent US2915464A successfully refreshed from Google Patents.
US2915464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounded lubricant compositions and composite addition agents therefor
Assignee: Gulf Oil Corp
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Filing: 1957-09-03
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Granted: 1959-12-01
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Troy L Cantrell
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:00
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/12; C10M2215/122; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
206 words
A LUBRICANT COMPOSTION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON LUBRICATING OIL AND CONTAINING A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE LOAD CARRYING PROPERTIES OF THE OIL, OF A COMBINATION OF (A) A SULFURIZED MONOESTER ADDITION PRODUCT OF SULFUR AND AN UNSATURATED ESTER OF ANALIPHATIC MONOHYDRIC ALCOHOL THA T CONTAINS 14 TO 20 CARBON ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PERMOLECULE AND AN ALIPHATIC MONOCARBOXYLIC ACID THAT CONTAINS 10 TO 20 CARBON ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PER MOLECULE, (B) A SALT OF A CYCLOALIPHATIC MONOAMINE THAT CONTAINS 5 TO 12 CARBON ATOMS PER MOLECULE AND A DIALKYL /-PHOSPHORIC ACID THAT HAS ONE ALKYL SUBSTITUENT CONTAINING 8 TO 12 CARBON ATOMS AND ANOTHER CONTAINING 5 TO 8 CARBON ATOMS, AND (C) A SALT OF AN ALIPHATIC MONOAMINE THAT CONTAINS 8 TO 18 CARBON ATOMS PER MOLECULE AND N-ALKYLAMIDOPHTHALIC ACID WHOSE ALKYL SUBSTITUENT CONTAINS 8 TO 18 CARBON ATOMS, SAID SMALL AMOUNT COMPRISING AT LEAST ABOUT 0.003 PERCENT BY WEIGHT OF THE COMPOSITION OF SAID SULFURIZED MONOESTER, AT LEAST ABOUT 0.0125 PERCENT BY WEIGHT OF THE COMPOSITION OF SAID SALT OF SAID CYCLOALIPHATIC MONOAMINE, AND AT LEAST ABOUT 0.005 PERCENT BY WEIGHT OF THE COMPOSITION OF SAID SALT OF SAID ALIPHATIC MONOAMINE.
Claim 2
Dependent Claim
206 words
A LUBRICANT COMPOSTION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON LUBRICATING OIL AND CONTAINING A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE LOAD CARRYING PROPERTIES OF THE OIL, OF A COMBINATION OF (A) A SULFURIZED MONOESTER ADDITION PRODUCT OF SULFUR AND AN UNSATURATED ESTER OF ANALIPHATIC MONOHYDRIC ALCOHOL THA T CONTAINS 14 TO 20 CARBON ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PERMOLECULE AND AN ALIPHATIC MONOCARBOXYLIC ACID THAT CONTAINS 10 TO 20 CARBON ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PER MOLECULE, (B) A SALT OF A CYCLOALIPHATIC MONOAMINE THAT CONTAINS 5 TO 12 CARBON ATOMS PER MOLECULE AND A DIALKYL /-PHOSPHORIC ACID THAT HAS ONE ALKYL SUBSTITUENT CONTAINING 8 TO 12 CARBON ATOMS AND ANOTHER CONTAINING 5 TO 8 CARBON ATOMS, AND (C) A SALT OF AN ALIPHATIC MONOAMINE THAT CONTAINS 8 TO 18 CARBON ATOMS PER MOLECULE AND N-ALKYLAMIDOPHTHALIC ACID WHOSE ALKYL SUBSTITUENT CONTAINS 8 TO 18 CARBON ATOMS, SAID SMALL AMOUNT COMPRISING AT LEAST ABOUT 0.003 PERCENT BY WEIGHT OF THE COMPOSITION OF SAID SULFURIZED MONOESTER, AT LEAST ABOUT 0.0125 PERCENT BY WEIGHT OF THE COMPOSITION OF SAID SALT OF SAID CYCLOALIPHATIC MONOAMINE, AND AT LEAST ABOUT 0.005 PERCENT BY WEIGHT OF THE COMPOSITION OF SAID SALT OF SAID ALIPHATIC MONOAMINE.
Claim 3
Dependent Claim
164 words
A COMBINATION ADDITION AGENT FOR HYDROCARBON OIL LUBRICANT COMPOSITIONS COMPRISING (A) A SULFURIZED MONOESTER ADDITION PRODUCT OF SULFUR AND AN UNSATURATED ESTER OF AN ALIPHATIC MONOHYDRIC ALCOHOL THAT CONTAINS 14 TO 20 CARBON ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PERMOLECULE AND AN ALIPHATIC MONOCARBOXYLIC ACID THAT CONTAINS 10 TO 20 CARBONS ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PER MOLECULE, (B) A SALT OF A CYCLOALIPHATIC MONOAMINE THAT CONTAINS 5 TO 12 CARBON ATOMS PER MOLECULE AND A DIALKYL O-PHOSPHATE HAVING ONE ALKYL GROUP THAT CONTAINS 8 TO 12 CARBONS ATOMS AND ANOTHER THAT CONTAINS 5 TO 8 CARBON ATOMS, AND (C) A SALT OF AN ALIPHATIC MONOAMINE THAT CONTAINS 8 TO 18 CARBON ATOMS PER MOLECULE AND AN N-ALKYLAMIDOPHTHALIC ACID WHOSE N-ALKYL SUBSTITUENT CONTAINS 8 TO 18 CARBON ATOMS, SAID SALT OF SAID CYCLOALIPHATIC MONOAMINE AND SAID SALT OF SAID ALIPHATIC MONOAMINE BEING PRESENT RESPECTIVELY IN THE RATIO IN THE RANGE 8:1 TO 1:8 WITH RESPECT TO SAID SULFURIZED MONOESTER.
Claim 4
Dependent Claim
164 words
A COMBINATION ADDITION AGENT FOR HYDROCARBON OIL LUBRICANT COMPOSITIONS COMPRISING (A) A SULFURIZED MONOESTER ADDITION PRODUCT OF SULFUR AND AN UNSATURATED ESTER OF AN ALIPHATIC MONOHYDRIC ALCOHOL THAT CONTAINS 14 TO 20 CARBON ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PERMOLECULE AND AN ALIPHATIC MONOCARBOXYLIC ACID THAT CONTAINS 10 TO 20 CARBONS ATOMS AND NOT MORE THAN ONE ETHYLENIC LINKAGE PER MOLECULE, (B) A SALT OF A CYCLOALIPHATIC MONOAMINE THAT CONTAINS 5 TO 12 CARBON ATOMS PER MOLECULE AND A DIALKYL O-PHOSPHATE HAVING ONE ALKYL GROUP THAT CONTAINS 8 TO 12 CARBONS ATOMS AND ANOTHER THAT CONTAINS 5 TO 8 CARBON ATOMS, AND (C) A SALT OF AN ALIPHATIC MONOAMINE THAT CONTAINS 8 TO 18 CARBON ATOMS PER MOLECULE AND AN N-ALKYLAMIDOPHTHALIC ACID WHOSE N-ALKYL SUBSTITUENT CONTAINS 8 TO 18 CARBON ATOMS, SAID SALT OF SAID CYCLOALIPHATIC MONOAMINE AND SAID SALT OF SAID ALIPHATIC MONOAMINE BEING PRESENT RESPECTIVELY IN THE RATIO IN THE RANGE 8:1 TO 1:8 WITH RESPECT TO SAID SULFURIZED MONOESTER.
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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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |