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US2640475A
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Cylinder top oiler
Assignee: Individual
•
Filing: 1949-11-17
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Granted: 1953-06-02
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Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 Robert K Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:41
CPC Classifications
F; F01; F01M; F01M3/00; F01M3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1633378A
Cited
US1781539A
Cited
US1905527A
Cited
US1814970A
Cited
US1856300A
Cited
US2048175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |