US3396330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for taking the logarithm of well logging measurements utilizing a time domain technique
Assignee: Schlumberger Technology Corp
•
Filing: 1965-12-15
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Granted: 1968-08-06
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Lee Jimmy Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:09
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/26; G01V3/28; G01V3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1261248A
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US2600423A
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US3237113A
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US3020471A
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US3092719A
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US3226633A
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US3120647A
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US3329889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |