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Patent US2596146A successfully refreshed from Google Patents.
US2596146A
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Well pumping system
Assignee: Vernon Tool Co Ltd
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Filing: 1945-03-17
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Granted: 1952-05-13
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Expires: 1965-03-17
Abstract
No abstract record available.
Inventors
- 👤 Marcus W Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:18
CPC Classifications
F; F04; F04B; F04B47/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1376877A
Cited
US1206706A
Cited
US1412146A
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US1614865A
Cited
US1901031A
Cited
US2530673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |