US2810346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shallow well pump
Assignee: Tait Manufacturing Co
•
Filing: 1953-08-11
•
Granted: 1957-10-22
•
Expires: 1973-08-11
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Lung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:10
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/06; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2651998A
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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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |