US2087603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blending agents for lubricating compositions and method for manufacturing same
Assignee: Standard Oil Development Co
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Filing: 1934-10-19
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Granted: 1937-07-20
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Expires: 1954-10-19
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
- 👤 Charles F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:38
CPC Classifications
C; C10; C10M; C10M171/00; C10M2207/00; C10M2207/02; C10M2207/06; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10N; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
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) | 1940-07-19 | 1941-01-18 | 1941-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-19 | 1945-01-18 | 1945-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-19 | 1949-01-18 | 1949-07-20 | $7700.00 | Window Closed / Lapsed |