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Patent US2996619A successfully refreshed from Google Patents.
US2996619A
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Radioactivity well logging
Assignee: Texaco Inc
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Filing: 1956-12-21
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Granted: 1961-08-15
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Expires: 1976-12-21
Abstract
No abstract record available.
Inventors
- 👤 Herzog Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:58
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733353A
Cited
US2037924A
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US2133776A
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US2220509A
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US2313310A
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US2346481A
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US2409436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |