Patent FR1260282A successfully refreshed from Google Patents.
US3468258A
Expired / Lapsed
US
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Wire-line suspended electric pump installation in well casing
Assignee: Reda Pump Co
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Filing: 1968-07-30
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Granted: 1969-09-23
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Expires: 1988-07-30
Abstract
No abstract record available.
Inventors
- 👤 Armasis Arutunoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:45
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/128; E21B23/00; E21B23/04; E21B23/0411; E21B23/0419; E21B23/042; F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |