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Patent US3055228A successfully refreshed from Google Patents.
US3055228A
Expired / Lapsed
US
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Pumping unit for multiple wells
Assignee: Jersey Production Research Co
•
Filing: 1959-12-08
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Granted: 1962-09-25
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Expires: 1979-12-08
Abstract
No abstract record available.
Inventors
- 👤 Peter R Mcstravick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:57
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/18182; Y10T74/18888; Y10T74/1892; Y10T74/18928; Y10T74/18968
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US431442A
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US1026508A
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US1069717A
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US1556832A
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US1591109A
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US2053715A
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US2744468A
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US2910002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |