Patent US3076138A successfully refreshed from Google Patents.
US3076138A
Expired / Lapsed
US
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Electrical logging
Assignee: Texaco Inc
•
Filing: 1958-12-30
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Granted: 1963-01-29
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Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Roland B Stelzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:05
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2415364A
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US2393009A
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US2742605A
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US2782364A
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US2882988A
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US2776402A
Cited
US2884589A
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US2920266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |