US2879229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clay-thickened lubricants and the preparation thereof
Assignee: Phillips Petroleum Co
•
Filing: 1955-08-18
•
Granted: 1959-03-24
•
Expires: 1975-08-18
Abstract
No abstract record available.
Inventors
- 👤 Charles A Stratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:25
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/14; C10M2207/00; C10M2207/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/16; C10M2215/24; C10M2215/26; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A BODIED LUBRICANT CONSISTING ESSENTIALLY OF HYDROCARBON LUBRICATING OIL; ORGANOPHILIC BENTONITE IN A PROPORTION SUFFICIENT TO THICKEN SAID OIL GREASE CONSISTENCY, SAID BENTONITE HAVING BEEN RENDERED ORGANOPHILIC BY REPLACING THE EXCHANGEABLE INORGANIC CATIONS OF THE BENTONITE WITH ORGANIC CATIONS FROM SALTS OF ORGANIC COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AMINES, POLYAMINES AND QUATERNARY AMMONIUM COMPOUNDS; AND ABOUT 0.5 TO 3 WEIGHT PERCENT DISPERSION AGENT OF ACETONE AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETONITRILE AND PROPIONITRILE, SAID DISPERSION AGENT BEING ABOUT 1.5 TO ABOUT 35 WEIGHT PERCENT NITRILE AND THE REMAINDER ACETONE.
Claim 2
Dependent Claim
95 words
A BODIED LUBRICANT CONSISTING ESSENTIALLY OF HYDROCARBON LUBRICATING OIL; ORGANOPHILIC BENTONITE IN A PROPORTION SUFFICIENT TO THICKEN SAID OIL GREASE CONSISTENCY, SAID BENTONITE HAVING BEEN RENDERED ORGANOPHILIC BY REPLACING THE EXCHANGEABLE INORGANIC CATIONS OF THE BENTONITE WITH ORGANIC CATIONS FROM SALTS OF ORGANIC COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AMINES, POLYAMINES AND QUATERNARY AMMONIUM COMPOUNDS; AND ABOUT 0.5 TO 3 WEIGHT PERCENT DISPERSION AGENT OF ACETONE AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETONITRILE AND PROPIONITRILE, SAID DISPERSION AGENT BEING ABOUT 1.5 TO ABOUT 35 WEIGHT PERCENT NITRILE AND THE REMAINDER ACETONE.
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |