Patent US2227149A successfully refreshed from Google Patents.
US2227149A
Expired / Lapsed
US
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Lubricating oil for diesel engines
Assignee: Standard Oil Development Co
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Filing: 1937-12-23
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Granted: 1940-12-31
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Expires: 1957-12-23
Abstract
No abstract record available.
Inventors
- 👤 Eger V Murphree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:26
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/142; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; 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) | 1943-12-31 | 1944-07-01 | 1944-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-31 | 1948-07-01 | 1948-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-31 | 1952-07-01 | 1952-12-31 | $7700.00 | Window Closed / Lapsed |