US2646401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous lubricating grease
Assignee: Standard Oil Development Co
•
Filing: 1950-04-28
•
Granted: 1953-07-21
•
Expires: 1970-04-28
Abstract
No abstract record available.
Inventors
- 👤 O'halloran Rosemary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:50
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE MANUFACTURE OF AN IMPROVED LUBRICATING COMPOSITION WHICH COMPRISES ADMIXING WITH A LUBRICATING OIL THE DESIRED AMOUNT OF A SOAP OF A NON-CONJUNGATED UNSATURATED FATTY ACID HAVING AN IODINE NUMBER ABOVE ABOUT 75 SELECTED FROM THE CLASS CONSISTING OF LITHIUM SOAPS, MIXTURES OF LITHIUM AND STRONTIUM SOAPS, AND MIXTURES OF LITHIUM AND CALCIUM SOAPS OF UNSATURATED FATTY ACIDS, HEATING THE MIXTURE TO THE MELTING POINT OF THE SOAP, COOLING THE HEATED SOAP MIXTURE TO ITS TRANSITION TEMPERATURE WITH AGITATION, AND COOLING THE AGITATED GREASE MIXTURE WITHOUT AGITATION TO A SAFE HANDLING TEMPERATURE.
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE MANUFACTURE OF AN IMPROVED LUBRICATING COMPOSITION WHICH COMPRISES ADMIXING WITH A LUBRICATING OIL THE DESIRED AMOUNT OF A SOAP OF A NON-CONJUNGATED UNSATURATED FATTY ACID HAVING AN IODINE NUMBER ABOVE ABOUT 75 SELECTED FROM THE CLASS CONSISTING OF LITHIUM SOAPS, MIXTURES OF LITHIUM AND STRONTIUM SOAPS, AND MIXTURES OF LITHIUM AND CALCIUM SOAPS OF UNSATURATED FATTY ACIDS, HEATING THE MIXTURE TO THE MELTING POINT OF THE SOAP, COOLING THE HEATED SOAP MIXTURE TO ITS TRANSITION TEMPERATURE WITH AGITATION, AND COOLING THE AGITATED GREASE MIXTURE WITHOUT AGITATION TO A SAFE HANDLING TEMPERATURE.
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) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |