US2836259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic crankcase oil level maintainer pump
Assignee: Individual
•
Filing: 1954-06-10
•
Granted: 1958-05-27
•
Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Harian K Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:12
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/06; F01M11/061; F16; F16N; F16N19/00; F16N19/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1346898A
Cited
US1280222A
Cited
US2208912A
Cited
US2413546A
Cited
US2623469A
Cited
US2671529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |