Patent US2422769A successfully refreshed from Google Patents.
US2422769A
Expired / Lapsed
US
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Lubricant
Assignee: Monsanto Chemicals Ltd
•
Filing: 1944-06-17
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Granted: 1947-06-24
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Expires: 1964-06-17
Abstract
No abstract record available.
Inventors
- 👤 Edward S Blake
- 👤 Kenncth L Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:26
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/06; C10M2219/062; C10N; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/20; C10N2040/22; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |