US3379032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature stabilization apparatus for well logging systems
Assignee: Dresser Industries Inc
•
Filing: 1965-12-21
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Granted: 1968-04-23
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Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Billy F Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:39
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/01; E21B47/017; E21B47/0175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3258593A
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US3013186A
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US3038074A
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US3105148A
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US3265893A
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US3215194A
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US3174301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |