US2506900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing addition agents for mineral oil lubricants, the agents so obtained, and mineral oil lubricants containing them
Assignee: Gulf Oil Corp
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Filing: 1947-02-19
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Granted: 1950-05-09
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Expires: 1967-02-19
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:33
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F9/00; C07F9/02; C10M2223/00; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/02; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE PROCESS OF PREPARING AN ADDITION AGENT FOR MINERAL OIL LUBRICANTS WHICH COMPRISES SIMULTANEOUSLY REACTING AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO 350*F. AN OCTYL PHENOL WITH FROM 0.5 TO 30 PER CENT BY WEIGHT ON THE OCTYL PHENOL OF A SULFUR CHLORIDE AND FROM 0.1 TO 5 PER CENT BY WEIGHT ON THE OCTYL PHENOL OF PHOSPHORUS SESQUISULFIDE.
Claim 2
Dependent Claim
60 words
THE PROCESS OF PREPARING AN ADDITION AGENT FOR MINERAL OIL LUBRICANTS WHICH COMPRISES SIMULTANEOUSLY REACTING AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO 350*F. AN OCTYL PHENOL WITH FROM 0.5 TO 30 PER CENT BY WEIGHT ON THE OCTYL PHENOL OF A SULFUR CHLORIDE AND FROM 0.1 TO 5 PER CENT BY WEIGHT ON THE OCTYL PHENOL OF PHOSPHORUS SESQUISULFIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |