US3414059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating means for well tools
Assignee: Schlumberger Technology Corp
•
Filing: 1967-03-06
•
Granted: 1968-12-03
•
Expires: 1987-03-06
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Nutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/004; E21B23/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675875A
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US2831542A
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US2893492A
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US2901001A
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US3096823A
Cited
US3280917A
Cited
US3311173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |