US2504672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium grease
Assignee: California Research LLC
•
Filing: 1948-11-01
•
Granted: 1950-04-18
•
Expires: 1968-11-01
Abstract
No abstract record available.
Inventors
- 👤 Bruce B Farrington
- 👤 Frank A Leyda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:33
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A LUBRICATING GREASE COMPRISING: A MINERAL LUBRICATING OIL, A LITHIUM SOAP IN QUANTITY SUFFLCIENT TO SUBSTANTIALLY THICKEN SAID OIL, AND AN AMOUNT OF A ZINC DIALKYL DITHIOCARBAMATE BETWEEN ABOUT 0.1% AND ABOUT 1%
Claim 2
Dependent Claim
33 words
A LUBRICATING GREASE COMPRISING: A MINERAL LUBRICATING OIL, A LITHIUM SOAP IN QUANTITY SUFFLCIENT TO SUBSTANTIALLY THICKEN SAID OIL, AND AN AMOUNT OF A ZINC DIALKYL DITHIOCARBAMATE BETWEEN ABOUT 0.1% AND ABOUT 1%
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |