US3254297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse transmission method and apparatus for geophysical prospecting utilizing means for generating unipolar pulses between groups of periodic pulses
Assignee: Atlantic Richfield Co
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Filing: 1960-10-25
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Granted: 1966-05-31
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 Edgar O Mcalister
- 👤 Richard L Myers
- 👤 Robert L Broxholme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:55
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/02; G01V3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN GEOPHYCSICAL EXPLORATION, THE METHOD WHICH COMPRISES APPLYING TO SPACED TRANSMITTER ELECTRODES IN THE EARTH A FIRST SIGNAL INCLUDING PERIODIC CURRENT PULSES SPACED BY TIME INTERVALS, MEASRUING BETWEEN SPACED RECEIVER ELECTRODES IN THE EARTH THE COMPONENT OF VOLTAGE HAVING THE PERIODICITY OF SAID PULSE WHICH APPEARS DURING THE INTERVALS BETWEEN SAID PULSES, THEN APPLYING TO SAID TRANSMITTER ELECTRODES A SECOND SIGNAL COMPRISING A UNIPOLAR CURRENT FOR A TIME LONG COMPARED TO SAID PERIODICITY, THEN
Claim 2
Dependent Claim
74 words
IN GEOPHYCSICAL EXPLORATION, THE METHOD WHICH COMPRISES APPLYING TO SPACED TRANSMITTER ELECTRODES IN THE EARTH A FIRST SIGNAL INCLUDING PERIODIC CURRENT PULSES SPACED BY TIME INTERVALS, MEASRUING BETWEEN SPACED RECEIVER ELECTRODES IN THE EARTH THE COMPONENT OF VOLTAGE HAVING THE PERIODICITY OF SAID PULSE WHICH APPEARS DURING THE INTERVALS BETWEEN SAID PULSES, THEN APPLYING TO SAID TRANSMITTER ELECTRODES A SECOND SIGNAL COMPRISING A UNIPOLAR CURRENT FOR A TIME LONG COMPARED TO SAID PERIODICITY, THEN
References Cited (Backward Citations)
US2644130A
Cited
US3113265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |