US2545190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali base lubricating greases
Assignee: Shell Development Co
•
Filing: 1948-09-14
•
Granted: 1951-03-13
•
Expires: 1968-09-14
Abstract
No abstract record available.
Inventors
- 👤 Arnold A Bondi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:17
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/14; C10M2205/16; C10M2205/17; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/108; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/10; C10M2215/102; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2219/087; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/047; C10M2223/12; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A MECHANICALLY STABLE, THERMALLY REVERSIBLE, NON-BLEEDING GREASE COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL, FROM 5% TO 25% OF AN ALKALI METAL SOAP AND FROM 0.01% TO 1% OF A MONOHYDROCARBYL ETHER OF A POLYALKYLENE GLYCOL, SAID MONOHYDROCARBYL GROUP HAVING FROM 6 TO 32 CARBON ATOMS AND WHEREIN SAID ALKYLENE RADICALS OF THE POLYALKYLENE GLYCOL HAVE FROM 2 TO 6 CARBON ATOMS EACH.
Claim 2
Dependent Claim
64 words
A MECHANICALLY STABLE, THERMALLY REVERSIBLE, NON-BLEEDING GREASE COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL, FROM 5% TO 25% OF AN ALKALI METAL SOAP AND FROM 0.01% TO 1% OF A MONOHYDROCARBYL ETHER OF A POLYALKYLENE GLYCOL, SAID MONOHYDROCARBYL GROUP HAVING FROM 6 TO 32 CARBON ATOMS AND WHEREIN SAID ALKYLENE RADICALS OF THE POLYALKYLENE GLYCOL HAVE FROM 2 TO 6 CARBON ATOMS EACH.
References Cited (Backward Citations)
US1982662A
Cited
US2031405A
Cited
US2122940A
Cited
US2361806A
Cited
US2398173A
Cited
US2445935A
Cited
US2475589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |