US2522669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic lubricants from normal aliphatic mercaptans and aliphatic ketones
Assignee: ExxonMobil Oil Corp
•
Filing: 1947-05-21
•
Granted: 1950-09-19
•
Expires: 1967-05-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:53
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07G; C07G99/00; C07G99/002; C10M2207/00; C10M2207/02; C10M2207/023; C10M2219/00; C10M2219/08; C10M2219/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR REACTING NORMAL OCTYL MERCAPTAN AND OLEONE, WHICH COMPRISES CONTACTING SAID MERCAPTAN WITH SAID OLEONE, IN THE PRESENCE OF BETWEEN 5 PER CENT AND 20 PER CENT, BY WEIGHT OF THE TOTAL WEIGHT OF THE REACTANTS, OF ANHYDROUS ZINC CHLORIDE AND OF AN EXCESS OF GASEOUS HYDROCHLORIC ACID, AT A TEMPERATURES OF BETWEEN ABOUT 150*C. AND ABOUT 180*C., AND FOR A PERIOD OF TIME OF ONE TO THREE HOURS.
Claim 2
Dependent Claim
71 words
A PROCESS FOR REACTING NORMAL OCTYL MERCAPTAN AND OLEONE, WHICH COMPRISES CONTACTING SAID MERCAPTAN WITH SAID OLEONE, IN THE PRESENCE OF BETWEEN 5 PER CENT AND 20 PER CENT, BY WEIGHT OF THE TOTAL WEIGHT OF THE REACTANTS, OF ANHYDROUS ZINC CHLORIDE AND OF AN EXCESS OF GASEOUS HYDROCHLORIC ACID, AT A TEMPERATURES OF BETWEEN ABOUT 150*C. AND ABOUT 180*C., AND FOR A PERIOD OF TIME OF ONE TO THREE HOURS.
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) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |