US2978170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic oiler for air pumps
Assignee: Individual
•
Filing: 1958-07-03
•
Granted: 1961-04-04
•
Expires: 1978-07-03
Abstract
No abstract record available.
Inventors
- 👤 James O Ivie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:51
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/30; F16N7/32; F16N7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR394313A
Cited
US1706676A
Cited
US2153349A
Cited
US2272926A
Cited
US2514623A
Cited
US2689080A
Cited
US2769445A
Cited
US2850323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |