Patent US2493346A successfully refreshed from Google Patents.
US2493346A
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Well logging detector calibration
Assignee: Texaco Inc
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Filing: 1946-08-29
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Granted: 1950-01-03
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Expires: 1966-08-29
Abstract
No abstract record available.
Inventors
- 👤 Herzog Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:30
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101; F; F27; F27B; F27B5/00; F27B5/06; F27B5/14; F27B2005/143; F27B5/16; F27B2005/161; F27B2005/164; F27B2005/166; F27B2005/169; Y; Y10; Y10S; Y10S131/00; Y10S131/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2296176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |