US2947696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calcium base grease containing a calcium salt of an amidic acid
Assignee: Sinclair Refining Co
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Filing: 1957-04-22
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Granted: 1960-08-02
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Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 Nelson John Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:47
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
AN ANHYDROUS LUBRICATING GREASE CONSISTING ESSENTIALLY OF A LUBRICATING BASE OIL AND A GREASE-FORMING SOAP IN AN AMOUNT SUFFICIENT TO THICKEN THE BASE OIL TO GREASE CONSISTENCY, THE GREASE-FORMING SOAP XONSISTING ESSENTIALLY OF THE CALXIUM SOAPS OF 12-HYDROXY STEARIC ACID AND THE ACID HAVING THE FORMULA
Claim 2
Dependent Claim
46 words
AN ANHYDROUS LUBRICATING GREASE CONSISTING ESSENTIALLY OF A LUBRICATING BASE OIL AND A GREASE-FORMING SOAP IN AN AMOUNT SUFFICIENT TO THICKEN THE BASE OIL TO GREASE CONSISTENCY, THE GREASE-FORMING SOAP XONSISTING ESSENTIALLY OF THE CALXIUM SOAPS OF 12-HYDROXY STEARIC ACID AND THE ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2607734A
Cited
US2752312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |