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Patent US2970646A successfully refreshed from Google Patents.
US2970646A
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Method for installing controls to and operating an underwater well
Assignee: Jersey Production Research Co
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Filing: 1958-01-30
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Granted: 1961-02-07
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Expires: 1978-01-30
Abstract
No abstract record available.
Inventors
- 👤 Richard P Knapp
- 👤 James R Sims
- 👤 Frank T Focht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:15
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/035; E21B33/037; Y; Y10; Y10T; Y10T137/00; Y10T137/402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US962019A
Cited
GB160865A
Cited
US2171672A
Cited
US2669431A
Cited
US2606003A
Cited
US2684575A
Cited
US2854215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |