Patent US3136381A successfully refreshed from Google Patents.
US3136381A
Expired / Lapsed
US
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Directed acoustic velocity logging
Assignee: Halliburton Co
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Filing: 1960-05-03
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Granted: 1964-06-09
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Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Warren L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:29
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/32; G01; G01V; G01V1/00; G01V1/40; G01V1/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
IN COMBINATION WITH AN ACOUSTIC WELL LOGGING SYSTEM, A LOGGING TOOL BODY, A SOUND ENERGY TRANSMITTING TRANSDUCER IN SAID BODY HAVING FRUSTO-CONICAL GEOMETRY CHARACTERIZED BY HAVING AN AXIS AND BASE AND TRUNCATED ENDS, A RECEIVER TRANSDUCER IN SAID BODY COAXIALLY DISPOSED WITH RESPECT TO SAID TRANSMITTING TRANSDUCER AND SPACED
Claim 2
Dependent Claim
49 words
IN COMBINATION WITH AN ACOUSTIC WELL LOGGING SYSTEM, A LOGGING TOOL BODY, A SOUND ENERGY TRANSMITTING TRANSDUCER IN SAID BODY HAVING FRUSTO-CONICAL GEOMETRY CHARACTERIZED BY HAVING AN AXIS AND BASE AND TRUNCATED ENDS, A RECEIVER TRANSDUCER IN SAID BODY COAXIALLY DISPOSED WITH RESPECT TO SAID TRANSMITTING TRANSDUCER AND SPACED
References Cited (Backward Citations)
US2156052A
Cited
US2420864A
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US2438925A
Cited
US2825044A
Cited
US2708485A
Cited
US2834952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |