US2494332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extreme pressure lubricants
Assignee: Standard Oil Development Co
•
Filing: 1948-04-07
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Granted: 1950-01-10
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Expires: 1968-04-07
Abstract
No abstract record available.
Inventors
- 👤 Elmer B Cyphers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:47
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/047; C10N; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
25 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF PETROLEUM BASE OIL OF LUBRICATING VISCOSITY CONTAINING 1 TO 20% BY WEIGHT OF A MATERIAL HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2377870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |