Patent US2475246A successfully refreshed from Google Patents.
US2475246A
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Lubricants
Assignee: Standard Oil Development Co
•
Filing: 1944-12-30
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Granted: 1949-07-05
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Expires: 1964-12-30
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:14
CPC Classifications
C; C10; C10M; C10M151/00; C10M151/02; C10M2207/00; C10M2207/40; C10M2207/404; C10M2221/00; C10M2221/02; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2212895A
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US2341395A
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US2284896A
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US2247790A
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US2259869A
Cited
US2317666A
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US2389153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |