US2877181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized calcium fatty acid base grease
Assignee: Texaco Inc
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Filing: 1956-05-02
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Granted: 1959-03-10
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Expires: 1976-05-02
Abstract
No abstract record available.
Inventors
- 👤 John P Dilworth
- 👤 Uhrig Karl
- 👤 Harry C Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:25
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/067; C10M2219/00; C10M2219/02; C10M2219/024; C10M2221/00; C10M2221/04; C10M2221/041; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A STABLE ANHYDROUS CALCIUM GREASE COMPRISING AN OLEAGINOUS LUBRICATING BASE AS THE MAJOR COMPONENT, A CALCIUM SALT OF A C12 TO C24 UNSUBSTITUATED FATTY ACID AS THE THICKENING AGENT AND 0.5 TO 3 WEIGHT PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ESTOLIDE OF A HYDROXY FATTY ACID CONTAINING 12 TO 24 CARBON ATOMS, A CALCIUM SALT OF SAID ESTOLIDE AND A MIXTURE THEREOF SAID ESTOLIDE HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN 500 AND 3500 SAID GREASE HAVING BEEN SHOCK COOLED FROM A TEMPERATURE OF 190* F. TO ABOUT 100* F.
Claim 2
Dependent Claim
94 words
A STABLE ANHYDROUS CALCIUM GREASE COMPRISING AN OLEAGINOUS LUBRICATING BASE AS THE MAJOR COMPONENT, A CALCIUM SALT OF A C12 TO C24 UNSUBSTITUATED FATTY ACID AS THE THICKENING AGENT AND 0.5 TO 3 WEIGHT PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ESTOLIDE OF A HYDROXY FATTY ACID CONTAINING 12 TO 24 CARBON ATOMS, A CALCIUM SALT OF SAID ESTOLIDE AND A MIXTURE THEREOF SAID ESTOLIDE HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN 500 AND 3500 SAID GREASE HAVING BEEN SHOCK COOLED FROM A TEMPERATURE OF 190* F. TO ABOUT 100* F.
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |