Patent US3044298A successfully refreshed from Google Patents.
US3044298A
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Unbalanced bridge measurements of borehole temperature
Assignee: ExxonMobil Oil Corp
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Filing: 1957-12-16
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Granted: 1962-07-17
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Hayden D Hodges
- 👤 James T Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:52
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08; E; E21; E21B; E21B47/00; E21B47/06; E21B47/07; G01K7/00; G01K7/16; G01K7/22; G01K7/24; G01K7/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |