US3466533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction logging apparatus with reduced diameter auxiliary coil means
Assignee: Schlumberger Technology Corp
•
Filing: 1967-05-01
•
Granted: 1969-09-09
•
Expires: 1987-05-01
Abstract
No abstract record available.
Inventors
- 👤 Henri Georges Doll
- 👤 Jean L Dumanoir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:10
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/26; G01V3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2451596A
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US2582314A
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US3015060A
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US3108220A
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US3051892A
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US3065407A
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US3105190A
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US3181057A
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US3259836A
Cited
US3327203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |