US2718928A
Expired / Lapsed
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Seismic method of geological exploration
Assignee: Weiss Geophysical Corp
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Filing: 1951-03-07
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Granted: 1955-09-27
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Expires: 1971-03-07
Abstract
No abstract record available.
Inventors
- 👤 Weiss Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:43
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
IN A METHOD OF LOCATING THE BOUNDARIES OF A SUBTERRANEAN LOW-VELOCITY LAYER IMBEDDED IN AND BOUNDED ABOVE AND BELOW BY A MEDIUM OF HIGHER VELOCITY, THE STEPS OF SETTING UP AT A FIRST STATION IN SAID LOW VELOCITY MEDIUM, SEISMIC WAVES OF WAVE LENGTH SHORTER THAN THE THICKNESS OF SAID LAYER, TO CAUSE SAID LAYER TO ACT AS A WAVE GUIDE, AND MEASURING THE AVERAGE PROPAGATION VELOCITY OF SAID WAVES BETWEEN SAID STATION AND A PLURALITY OF STATIONS ON THE SURFACE OF THE GROUND.
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) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |