Patent US2653545A successfully refreshed from Google Patents.
US2653545A
Expired / Lapsed
US
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Well installation for subsuraface hydraulic pumps
Assignee: Byron Jackson Co
•
Filing: 1951-04-07
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Granted: 1953-09-29
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Expires: 1971-04-07
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Dempsey
- 👤 John B Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:53
CPC Classifications
F; F04; F04B; F04B47/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1568447A
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US1777981A
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US1755661A
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US1981288A
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US2230787A
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US2364600A
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US2469225A
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US2568320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |