US3274544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of distinguishing seismic signals
Assignee: Individual
•
Filing: 1963-10-21
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Granted: 1966-09-20
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 P R Rowe
- 👤 Bank Of The Southwest Associa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:26
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE METHOD OF SEISMIC EXPLORATION COMPRISING RADIATING IN THE EARTH A TRUNCATED WAVE TRAIN SIGNAL OF CONSTANT FREQUENCY AND AMPLITUDE AND PREDETERMINED NUMBER OF CYCLES, DETECTING A SUBSURFACE REFLECTION OF SAID SIGNAL AND ACCOMPANYING WAVE ENERGY, REPEATING THE DETECTED SIGNAL REFLECTION AND ASSOCIATED WAVE ENERGY A NUMBER OF TIMES EQUAL TO THE NUMBER OF HALF CYCLES IN SAID SIGNAL, AND MAKING AN ALGEBRAICALLY COMPOSITED RECORD OF THE REPEATED REFLECTION AND WAVE ENERGY PROGRESSIVELY SHIFTED IN PHASE A HALF WAVE LENGTH OF THE SIGNAL AND ALTERNATELY REVERSED IN PHASE FOR EMPHASIZING THE BEGINNING OF THE REFLECTED WAVE ENERGY ON THE COMPOSITE RECORD.
Claim 2
Independent Claim
101 words
THE METHOD OF SEISMIC EXPLORATION COMPRISING RADIATING IN THE EARTH A TRUNCATED WAVE TRAIN SIGNAL OF CONSTANT FREQUENCY AND AMPLITUDE AND PREDETERMINED NUMBER OF CYCLES, DETECTING A SUBSURFACE REFLECTION OF SAID SIGNAL AND ACCOMPANYING WAVE ENERGY, REPEATING THE DETECTED SIGNAL REFLECTION AND ASSOCIATED WAVE ENERGY A NUMBER OF TIMES EQUAL TO THE NUMBER OF HALF CYCLES IN SAID SIGNAL, AND MAKING AN ALGEBRAICALLY COMPOSITED RECORD OF THE REPEATED REFLECTION AND WAVE ENERGY PROGRESSIVELY SHIFTED IN PHASE A HALF WAVE LENGTH OF THE SIGNAL AND ALTERNATELY REVERSED IN PHASE FOR EMPHASIZING THE BEGINNING OF THE REFLECTED WAVE ENERGY ON THE COMPOSITE RECORD.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |