Patent US2435619A successfully refreshed from Google Patents.
US2435619A
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US
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Lubricant compositions
Assignee: Standard Oil Development Co
•
Filing: 1944-01-15
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Granted: 1948-02-10
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Expires: 1964-01-15
Abstract
No abstract record available.
Inventors
- 👤 David W Young
- 👤 William J Snarks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:13
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1983; C10M; C10M1/00; C10M1/08; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/102; C10M2229/00; C10M2229/04; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2040/00; C10N2040/135; C10N2040/25; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2310997A
Cited
GB428864A
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US2123641A
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US2239533A
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US2275007A
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US2330773A
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US2342113A
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US2384595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |