Patent US3379963A successfully refreshed from Google Patents.
US3379963A
Expired / Lapsed
US
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Well logging pad member constructed to contorm to borehole wall curvature
Assignee: Schlumberger Technology Corp
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Filing: 1965-04-02
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Granted: 1968-04-23
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Dean F Saurenman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:37
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2649960A
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US2712629A
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US2712630A
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US2696589A
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US2778951A
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US2961600A
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US3132298A
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US3069620A
Cited
US3068403A
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US3093793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |