US2667128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible pump
Assignee: Dayton Pump and Manufacturing Co
•
Filing: 1950-12-13
•
Granted: 1954-01-26
•
Expires: 1970-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles J Bergh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/06; F04D1/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1495167A
Cited
US1387660A
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GB498976A
Cited
US2270666A
Cited
US2236887A
Cited
US2366964A
Cited
US2430509A
Cited
US2430382A
Cited
US2423436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |