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US3465239A
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Stabilized power supply arrangement for well logging system
Assignee: Dresser Industries Inc
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Filing: 1965-04-20
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Granted: 1969-09-02
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Expires: 1985-04-20
Abstract
No abstract record available.
Inventors
- 👤 Homer M Wilson
- 👤 Leroy C Delatorre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/0085; G; G01; G01V; G01V11/00; G01V11/002; G01V3/00; G01V3/18; G01V3/34; Y; Y10; Y10S; Y10S323/00; Y10S323/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712629A
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US2829334A
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US2888632A
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US2912637A
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US3205433A
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US3105190A
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US3103626A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |