US2915467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing an anhydrous calcium grease
Assignee: Sinclair Refining Co
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Filing: 1954-11-23
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Granted: 1959-12-01
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Expires: 1974-11-23
Abstract
No abstract record available.
Inventors
- 👤 Martin M Mccormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:04
CPC Classifications
C; C10; C10M; C10M5/00; C10M2203/00; C10M2203/06; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/108; C10M2209/109; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN THE PREPARATION OF AN ANHYDROUS CALCIUM SOAP GREASE WHEREIN THE SOAP IS FORMED FROM HYDROXY FATTY COMPONENTS AND THE GREASE DEHYDRATED AT A TEMPERATURE NOT EXCEEDING ABOUT 260*F. TO A WATER CONTENT AT LEAST AS LOW AS 0.3 WEIGHT PERCENT, THE STEP OF HEATING THE DEHYDRATED GREASE AT A TEMPERATURE WHICH IS HIGHER THAN THE DEHYDRATION TEMPERATURE AND IS ABOUT 5* TO 20*F. BELOW THE DROPPING POINT OF THE GREASE FOR A PERIOD OF ABOUT 15 MINUTES TO 3 HOURS AND SUFFICIENT TO STABILIZE THE ESSENTIAL STRUCTURE OF THE GREASE.
Claim 2
Dependent Claim
91 words
IN THE PREPARATION OF AN ANHYDROUS CALCIUM SOAP GREASE WHEREIN THE SOAP IS FORMED FROM HYDROXY FATTY COMPONENTS AND THE GREASE DEHYDRATED AT A TEMPERATURE NOT EXCEEDING ABOUT 260*F. TO A WATER CONTENT AT LEAST AS LOW AS 0.3 WEIGHT PERCENT, THE STEP OF HEATING THE DEHYDRATED GREASE AT A TEMPERATURE WHICH IS HIGHER THAN THE DEHYDRATION TEMPERATURE AND IS ABOUT 5* TO 20*F. BELOW THE DROPPING POINT OF THE GREASE FOR A PERIOD OF ABOUT 15 MINUTES TO 3 HOURS AND SUFFICIENT TO STABILIZE THE ESSENTIAL STRUCTURE OF THE GREASE.
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |