US2511250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized extreme pressure lubricants
Assignee: Gulf Research and Development Co
•
Filing: 1947-11-14
•
Granted: 1950-06-13
•
Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jack S Fawcett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:46
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/08; C10M135/10; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/22; C10M2207/00; C10M2207/10; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/16; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/101; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2227/00; C10M2227/08; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/08; C10N2010/14; C10N2010/16; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A STABILIZED EXTREME PRESSURE LUBRICANT CONSISTING PREDOMINANTLY OF A LUBRICATING OIL, AN EXTREME PRESSURE AGENT CONSISTING OF A HALOGENATED HYDROCARBON IN AN AMOUNT SUFFICIENT TO IMPART EXTREME PRESSURE CHARACTERISTICS AND NORMALLY TO IMPART CORROSIVE PROPERTIES, AND A SMALL AMOUNT, SUFFICIENT TO INHIBIT SAID CORROSIVE PROPERTIES, OF THE TRIETHANOLAMINE SALT OF THE OIL SOLUBLE PETROLEUM SULFONIC ACIDS.
Claim 2
Dependent Claim
56 words
A STABILIZED EXTREME PRESSURE LUBRICANT CONSISTING PREDOMINANTLY OF A LUBRICATING OIL, AN EXTREME PRESSURE AGENT CONSISTING OF A HALOGENATED HYDROCARBON IN AN AMOUNT SUFFICIENT TO IMPART EXTREME PRESSURE CHARACTERISTICS AND NORMALLY TO IMPART CORROSIVE PROPERTIES, AND A SMALL AMOUNT, SUFFICIENT TO INHIBIT SAID CORROSIVE PROPERTIES, OF THE TRIETHANOLAMINE SALT OF THE OIL SOLUBLE PETROLEUM SULFONIC ACIDS.
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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |