Patent US2354536A successfully refreshed from Google Patents.
US2354536A
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US
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Lubricating oil composition
Assignee: Standard Oil Development Co
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Filing: 1941-01-02
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Granted: 1944-07-25
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Expires: 1961-01-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:28
CPC Classifications
C; C10; C10M; C10M139/00; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/061; C10M2227/00; C10M2227/06; C10N; C10N2010/00; C10N2010/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-07-25 | 1948-01-24 | 1948-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-25 | 1952-01-24 | 1952-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-25 | 1956-01-24 | 1956-07-25 | $7700.00 | Window Closed / Lapsed |