US2562474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiosilane synthetic lubricants
Assignee: ExxonMobil Oil Corp
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Filing: 1948-08-04
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Granted: 1951-07-31
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Expires: 1968-08-04
Abstract
No abstract record available.
Inventors
- 👤 Bernard A Orkin
- 👤 Frederick P Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:11
CPC Classifications
C; C10; C10M; C10M3/00; C10M2227/00; C10M2227/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SYNTHETIC LUBRICANT HAVING A VISCOSITY FALLING WITHIN THE VISCOSITY RANGE OF LUBRICATING OILS, A LOW POUR POINT, A HIGH VISCOSITY INDEX, AND GOOD STABILITY, CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OBTAINED BY REACTING A CYCLIC THIOL SELECTED FROM THE GROUP CONSISTING OF CYCLOALKANETHIOLS, ARYLTHIOLS, THIENYLTHIOL-2, THIENYLTHIOL-3, 2-ETHYLTHIENYLTHIOL-3, AND PYRIDYLTHIOL-2, AT LEAST ONE ALKANETHIOL, AND A SILICON TETRAHALIDE, IN A PROPORTION OF ABOUT ONE MOLE, ABOUT THREE MOLES, AND ABOUT ONE MOLE, RESPECTIVELY, AND AT A TEMPERATURE VARYING BETWEEN ABOUT 80* C. AND ABOUT 140* C.; THE TOTAL NUMBER OF CARBON ATOMS AND HETEROCYCLIC ATOMS PRESENT IN SAID CYCLIC THIOL AND SAID ALKANETHIOL VARYING BETWEEN 20 ATOMS AND 40 ATOMS
Claim 2
Dependent Claim
110 words
A SYNTHETIC LUBRICANT HAVING A VISCOSITY FALLING WITHIN THE VISCOSITY RANGE OF LUBRICATING OILS, A LOW POUR POINT, A HIGH VISCOSITY INDEX, AND GOOD STABILITY, CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OBTAINED BY REACTING A CYCLIC THIOL SELECTED FROM THE GROUP CONSISTING OF CYCLOALKANETHIOLS, ARYLTHIOLS, THIENYLTHIOL-2, THIENYLTHIOL-3, 2-ETHYLTHIENYLTHIOL-3, AND PYRIDYLTHIOL-2, AT LEAST ONE ALKANETHIOL, AND A SILICON TETRAHALIDE, IN A PROPORTION OF ABOUT ONE MOLE, ABOUT THREE MOLES, AND ABOUT ONE MOLE, RESPECTIVELY, AND AT A TEMPERATURE VARYING BETWEEN ABOUT 80* C. AND ABOUT 140* C.; THE TOTAL NUMBER OF CARBON ATOMS AND HETEROCYCLIC ATOMS PRESENT IN SAID CYCLIC THIOL AND SAID ALKANETHIOL VARYING BETWEEN 20 ATOMS AND 40 ATOMS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |