US2748348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing geophone performance
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-05-07
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Granted: 1956-05-29
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Expires: 1972-05-07
Abstract
No abstract record available.
Inventors
- 👤 Mccarter Ed Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
G; G01; G01V; G01V13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN APPARATUS FOR CHECKING THE PERFORMANCE OF A GEOPHONE COMPRISING A PULSE SOURCE AUTOMATICALLY FURNISHING PERIODIC ELECTRICAL PULSES, MEANS FEEDING SAID PULSES THROUGH THE COIL OF THE GEOPHONE AND MEANS FOR MEASURING THE WAVE FORMS OF THE PULSES GENERATED IN THE GEOPHONE AS THE RESULT OF SAID PERIODIC PULSES.
Claim 2
Independent Claim
49 words
AN APPARATUS FOR CHECKING THE PERFORMANCE OF A GEOPHONE COMPRISING A PULSE SOURCE AUTOMATICALLY FURNISHING PERIODIC ELECTRICAL PULSES, MEANS FEEDING SAID PULSES THROUGH THE COIL OF THE GEOPHONE AND MEANS FOR MEASURING THE WAVE FORMS OF THE PULSES GENERATED IN THE GEOPHONE AS THE RESULT OF SAID PERIODIC PULSES.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |