US2938870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extreme pressure lubricating oil containing sulfur-chlorinated esters of chlorendic acid
Assignee: Sinclair Refining Co
•
Filing: 1956-08-03
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Granted: 1960-05-31
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Expires: 1976-08-03
Abstract
No abstract record available.
Inventors
- 👤 Dorinson Amos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:30
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M2219/00; C10M2219/02; C10M2219/024; C10N; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A NEW COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL AND AN AMOUNT SUFFICIENT TO INCREASE THE LOAD CARRYING CAPACITY OF THE OIL OF A SULFURCHLORINATED OIL-SOLUBLE ESTER OF CHLORENDIC ACID PRODUCED BY REACTING A SULFUR CHLORIDE AND AN OIL-SOLUBLE CHLORENDIC ACID ESTER IN A RATIO OF ABOUT .5 TO 2 MOLES OF SULFUR CHLORIDE TO 1 MOLE OF SAID CHLORENDIC ACID ESTER WHEREIN SAID ESTER GROUP IS AN UNSATURATED ALIPHATIC HYDROCARBON RADICAL CONTAINING FROM 3 TO 20 CARBON ATOMS.
Claim 2
Dependent Claim
82 words
A NEW COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL AND AN AMOUNT SUFFICIENT TO INCREASE THE LOAD CARRYING CAPACITY OF THE OIL OF A SULFURCHLORINATED OIL-SOLUBLE ESTER OF CHLORENDIC ACID PRODUCED BY REACTING A SULFUR CHLORIDE AND AN OIL-SOLUBLE CHLORENDIC ACID ESTER IN A RATIO OF ABOUT .5 TO 2 MOLES OF SULFUR CHLORIDE TO 1 MOLE OF SAID CHLORENDIC ACID ESTER WHEREIN SAID ESTER GROUP IS AN UNSATURATED ALIPHATIC HYDROCARBON RADICAL CONTAINING FROM 3 TO 20 CARBON ATOMS.
References Cited (Backward Citations)
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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) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |