Patent US3487681A successfully refreshed from Google Patents.
US3487681A
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US
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Method and apparatus for resolving well logs
Assignee: Dresser Industries Inc
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Filing: 1965-01-14
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Granted: 1970-01-06
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Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Gilbert Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2911536A
Cited
US2659014A
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US2971094A
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US3121164A
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US2928071A
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US3205347A
Cited
US3281773A
Cited
US3336476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |