US3316237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive for cutting-oils and for high-pressure oils
Assignee: Snam SpA
•
Filing: 1964-01-17
•
Granted: 1967-04-25
•
Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Imparato Luigi
- 👤 Ross Sergio Del
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:25
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN ADDITIVE FOR MINERAL AND SYNTHETIC LUBRICATING OILS, CAPABLE OF IMPARTING TO THEM ANTIWELDING AND ANTIWEARING PROPERTIES, COMPRISING THE PRODUCT FORMED BY REACTING AN UNSATURATED HYDROCARBON COMPOUND WITH A SULFUR CHLORIDE IN THE PRESENCE OF AN EPOXY COMPOUND, AT TEMPERATURES OF FROM 30*C. TO 100*C., THE QUANTITIES OF THE SULFUR CHLORIDE AND OF THE EPOXY COMPOUND EMPLOYED VARYING FROM 5% TO 60% BY WEIGHT AND FROM 10% TO 50% BY WEIGHT, RESPECTIVELY, WITH RELATION TO THE TOTAL AMOUNT OF THE REAGENTS.
Claim 2
Dependent Claim
81 words
AN ADDITIVE FOR MINERAL AND SYNTHETIC LUBRICATING OILS, CAPABLE OF IMPARTING TO THEM ANTIWELDING AND ANTIWEARING PROPERTIES, COMPRISING THE PRODUCT FORMED BY REACTING AN UNSATURATED HYDROCARBON COMPOUND WITH A SULFUR CHLORIDE IN THE PRESENCE OF AN EPOXY COMPOUND, AT TEMPERATURES OF FROM 30*C. TO 100*C., THE QUANTITIES OF THE SULFUR CHLORIDE AND OF THE EPOXY COMPOUND EMPLOYED VARYING FROM 5% TO 60% BY WEIGHT AND FROM 10% TO 50% BY WEIGHT, RESPECTIVELY, WITH RELATION TO THE TOTAL AMOUNT OF THE REAGENTS.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |