US2949973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and means for measuring travel times through earth formations
Assignee: ExxonMobil Oil Corp
•
Filing: 1953-07-27
•
Granted: 1960-08-23
•
Expires: 1973-07-27
Abstract
No abstract record available.
Inventors
- 👤 Robert A Broding
- 👤 John O Ely
- 👤 Gerald C Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:05
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2200476A
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US2238991A
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US2275736A
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US2651027A
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US2704364A
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US2665411A
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US2708485A
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US2768701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |