US2813488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping unit having flow directing means
Assignee: Eaton Corp
•
Filing: 1953-09-30
•
Granted: 1957-11-19
•
Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Deska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:45
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/06; F04C15/062; F04C14/00; F04C14/24; F04C14/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2403556A
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US2748711A
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US2724335A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |