Patent US2976430A successfully refreshed from Google Patents.
US3209320A
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System for analyzing seismic signals
Assignee: ExxonMobil Upstream Research Co
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Filing: 1961-10-30
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Granted: 1965-09-28
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 James C Earthman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:34
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
AN APPARATUS FOR ANALYZING A SEISMIC SIGNAL WHICH COMPRISES SEISMIC SIGNAL GENERATING MEANS; SEPARATING MEANS ELECTRICALLY CONNECTED TO THE SEISMIC SIGNAL GENERATING MENS AND OF A CHARACTER TO SELECTIVELY ENRGIZE CHANNELS IN WHICH EACH CHANNEL REPRESENTS AND IS RESPONSIVE TO SELECTED INTERVALS OF VOLTAGE LEVELS OF SAID SIGNAL; AN INTEGRATOR FOR EACH CHANNEL AND ELECTRICALLY CONNECTED TO SAID SEPARATING MEANS SO AS TO SEPARATELY RECEIVE A SIGNAL FROM EACH ENERGIZED CHANNEL; MULTIPLYING MEANS AND FOR CONNECTED TO EACH SAID INTEGRATOR; AND MEANS TO DISPLAY THE OUTPUT SIGNAL FROM EACH SAID MULTIPLYING MEANS SO AS TO OBTAIN A SPECTRUM OF THE OUTPUT OF SAID MULTIPLYING MEANS.
References Cited (Backward Citations)
US2535043A
Cited
US2817815A
Cited
US2967274A
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US2991446A
Cited
US3142815A
Cited
US3072907A
Cited
US3072906A
Cited
US3070776A
Cited
US3063014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |