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US2708261A
Expired / Lapsed
US
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Subsurface areal electrical exploration
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-12-23
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Granted: 1955-05-10
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Expires: 1972-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:07
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1842361A
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US2179593A
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US2133786A
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US2263097A
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US2288973A
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US2294395A
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US2345608A
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US2440693A
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US2622124A
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US2575349A
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US2619520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |