Patent US2759552A successfully refreshed from Google Patents.
US2759552A
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Seismic exploration apparatus
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-10-01
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Granted: 1956-08-21
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Expires: 1971-10-01
Abstract
No abstract record available.
Inventors
- 👤 James R Ording
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:05
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
APPARATUS FOR SEISMIC EXPLORATION OF EARTH STRATA COMPRISING A MAGNETOSTRICTION TRANSDUCER FOR CONVERTING PRESSURE CHANGES TO ELECTRICAL WAVES WHILE REMAINING UNRESPONSIVE TO MOTIONAL CHANGES, SAID TRANSDUCER HAVING A NATURAL RESONANT FREQUENCY NOT SUBSTANTIALLY LESS THAN ABOUT 4000 CYCLES PER SECOND, AMPLIFIER MEANS ELECTRICALLY CONNECTED TO SAID TRANSDUCER FOR AMPLIFYING ELECTRIC WAVE OUTPUT THEREOF, SAID AMPLIFIER MEANS HAVING A PASS BAND FOR ELECTRICAL WAVE FREQUENCIES BETWEEN ABOUT 20 AND 150 CYCLES PER SECOND, AND MEANS ELECTRICALLY CONNECTED TO SAID
Claim 2
Dependent Claim
78 words
APPARATUS FOR SEISMIC EXPLORATION OF EARTH STRATA COMPRISING A MAGNETOSTRICTION TRANSDUCER FOR CONVERTING PRESSURE CHANGES TO ELECTRICAL WAVES WHILE REMAINING UNRESPONSIVE TO MOTIONAL CHANGES, SAID TRANSDUCER HAVING A NATURAL RESONANT FREQUENCY NOT SUBSTANTIALLY LESS THAN ABOUT 4000 CYCLES PER SECOND, AMPLIFIER MEANS ELECTRICALLY CONNECTED TO SAID TRANSDUCER FOR AMPLIFYING ELECTRIC WAVE OUTPUT THEREOF, SAID AMPLIFIER MEANS HAVING A PASS BAND FOR ELECTRICAL WAVE FREQUENCIES BETWEEN ABOUT 20 AND 150 CYCLES PER SECOND, AND MEANS ELECTRICALLY CONNECTED TO SAID
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |