Patent US3462679A successfully refreshed from Google Patents.
US3462679A
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Well logging methods and apparatus having plural electrode arrays
Assignee: Schlumberger Technology Corp
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Filing: 1966-09-01
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Granted: 1969-08-19
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Expires: 1986-09-01
Abstract
No abstract record available.
Inventors
- 👤 Georges Attali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:25
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3075142A
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US3065416A
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US3262050A
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US3329889A
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US3256480A
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US3373349A
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US3390323A
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US3388324A
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US3365658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |