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US3478839A
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Orientation sensing system for well logging tool for use in deviated boreholes
Assignee: Mobil Oil AS
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Filing: 1968-10-11
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Granted: 1969-11-18
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Expires: 1988-10-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph Zemanek Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:11
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44; G01V1/46; E; E21; E21B; E21B47/00; E21B47/02; E21B47/08; E21B47/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3369626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |