US2586379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication of engine bearings
Assignee: Individual
•
Filing: 1947-12-23
•
Granted: 1952-02-19
•
Expires: 1967-12-23
Abstract
No abstract record available.
Inventors
- 👤 Postma Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:12
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/14; F01; F01M; F01M11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1117256A
Cited
US1302564A
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US1354852A
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US1748120A
Cited
US1944609A
Cited
US2004254A
Cited
US2131170A
Cited
US2199699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |