US2626896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing alkali metal greases
Assignee: Texaco Inc
•
Filing: 1950-11-03
•
Granted: 1953-01-27
•
Expires: 1970-11-03
Abstract
No abstract record available.
Inventors
- 👤 John P Dilworth
- 👤 George W Eckert
- 👤 William J Coppoce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:17
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2219/00; C10M2219/04; C10M2219/044; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
LUBRICATING GREASES COMPRISING MAINLY A DEHYDRATED MIXTURE OF 15 TO 25 PER CENT ALKALI METAL SOAPS OF A SOAP-FORMING MATERIAL HAVING AN IODINE NUMBER OF AT LEAST 40, 60 TO 80 PER CENT MINERAL OIL AND 1 TO 3 PER CENT ALKALI METAL HYDROXIDE, SAID MIXTURE HAVING BEEN SUBJECTED TO DIGESTION AT A TEMPERATURE OF 300 TO 390* F. AND AT AN AIR PRESSURE OF 50 TO 120 POUNDS PER SQUARE INCH FOR AT LEAST 5 HOURS.
Claim 2
Dependent Claim
77 words
LUBRICATING GREASES COMPRISING MAINLY A DEHYDRATED MIXTURE OF 15 TO 25 PER CENT ALKALI METAL SOAPS OF A SOAP-FORMING MATERIAL HAVING AN IODINE NUMBER OF AT LEAST 40, 60 TO 80 PER CENT MINERAL OIL AND 1 TO 3 PER CENT ALKALI METAL HYDROXIDE, SAID MIXTURE HAVING BEEN SUBJECTED TO DIGESTION AT A TEMPERATURE OF 300 TO 390* F. AND AT AN AIR PRESSURE OF 50 TO 120 POUNDS PER SQUARE INCH FOR AT LEAST 5 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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |