Patent US3448373A successfully refreshed from Google Patents.
US3448373A
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US
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Well logging tool with a transversely shiftable member carrying a logging element and having a pivotally linked pad member
Assignee: Schlumberger Technology Corp
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Filing: 1966-06-10
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Granted: 1969-06-03
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Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Guerry L Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:20
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1014; E21B17/1021; G; G01; G01V; G01V11/00; G01V11/002; G01V11/005; G01V13/00; G01V3/00; G01V3/18; G01V3/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3072843A
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US3132298A
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US3162806A
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US3209588A
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US3333466A
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US3254221A
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US3370657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |