US2799652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant composition
Assignee: Standard Oil Co
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Filing: 1953-06-17
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Granted: 1957-07-16
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Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ellis K Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:17
CPC Classifications
C; C10; C10M; C10M163/00; C10M135/00; C10M135/32; C10M135/36; C10M2201/00; C10M2201/04; C10M2201/043; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/04; C10M2221/041; C10M2225/00; C10M2225/04; C10M2225/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OLEAGINOUS MATERIAL CONTAINING A COMPOUND NORMALLY CORROSIVE TO SILVER SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL SULFUR, A SULFUR-CONTAINING ORGANIC COMPOUND AND MIXTURES THEREOF AND FROM ABOUT 0.02% TO ABOUT 10% OF AN OIL-SOLUBLE REACTION PRODUCT OF 2,5DIMERCAPTO-1,3,4-THIADIAZOLE, AND AN UNSATURATED KETONE HAVING AT LEAST ONE OLEFINIC DOUBLE BOND, AND FROM ABOUT 4 TO ABOUT 40 CARBON ATOMS SELECTED FROM THE CLASS CONSISTING OF AN UNSATURATED ALIPHATIC KETONE AND AN UNSATURATED AROMATIC KETONE, SAID REACTION PRODUCT BEING OBTAINED BY REACTING SAID THIADIAZOLE AND SAID KETONE IN THE MOLAR RATIO OF FROM 1:2 TO 4:1, RESPECTIVELY, AT A TEMPERATURE OF FROM ABOUT 40*C. TO ABOUT 140*C.
Claim 2
Dependent Claim
114 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OLEAGINOUS MATERIAL CONTAINING A COMPOUND NORMALLY CORROSIVE TO SILVER SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL SULFUR, A SULFUR-CONTAINING ORGANIC COMPOUND AND MIXTURES THEREOF AND FROM ABOUT 0.02% TO ABOUT 10% OF AN OIL-SOLUBLE REACTION PRODUCT OF 2,5DIMERCAPTO-1,3,4-THIADIAZOLE, AND AN UNSATURATED KETONE HAVING AT LEAST ONE OLEFINIC DOUBLE BOND, AND FROM ABOUT 4 TO ABOUT 40 CARBON ATOMS SELECTED FROM THE CLASS CONSISTING OF AN UNSATURATED ALIPHATIC KETONE AND AN UNSATURATED AROMATIC KETONE, SAID REACTION PRODUCT BEING OBTAINED BY REACTING SAID THIADIAZOLE AND SAID KETONE IN THE MOLAR RATIO OF FROM 1:2 TO 4:1, RESPECTIVELY, AT A TEMPERATURE OF FROM ABOUT 40*C. TO ABOUT 140*C.
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) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |