US3284765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for establishing a common datum plane
Assignee: Mobil Oil AS
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Filing: 1963-09-03
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Granted: 1966-11-08
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Robert H Bratton
- 👤 Albert W Musgrave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:20
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/362; G01V2210/00; G01V2210/50; G01V2210/53
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
APPARATUS FOR ESTABLISHING A COMMON DATUM PLANE FOR THE SEVERAL TRACES OF A SEISMOGRAM BIASED UPON THE ARRIVAL TIMES T OF SEISMIC ENERGY AT ONE OR MORE OF PLURALITY OF DETECTOR RESPECTIVELY CORRESPONDING IN NUMBER OF SAID TRACES, SAID DETECTORS BEING SPACED A VARYING HORIZONTAL DISTANCES X FROM SAID SOURCE OF SEISMIC ENERGY, COMPRISING A FIRST FUNCTION GENERATOR FOR GENERATING A FIRST ELECTRICAL SIGNAL WHICH VARIES IN ACCORDANCE WITH THE RELATIONSHIP BETWEEN LOG X AND LOG T, A DIFFERENTIATOR, SAID ELECTRICAL SIGNAL BEING APPLIED TO SAID DIFFERENTIATOR TO PRODUCE A SECOND ELECTRICAL SIGNAL REPRESENTATIVE OF THE RATE OF CHANGE OF THE ELECTRICAL SIGNAL APPLIED THERETO, A SECOND FUNCTION GENERATOR, SAID SECOND ELECTRICAL SIGNAL BEING APPLIED TO SAID SECOND FUNCTION GENERATOR FOR PRODUCING A THIRD ELECTRICAL SIGNAL RELATED TO SAID SECOND ELECTRICAL SIGNAL BY B=1-1/N AND
Claim 2
Dependent Claim
135 words
APPARATUS FOR ESTABLISHING A COMMON DATUM PLANE FOR THE SEVERAL TRACES OF A SEISMOGRAM BIASED UPON THE ARRIVAL TIMES T OF SEISMIC ENERGY AT ONE OR MORE OF PLURALITY OF DETECTOR RESPECTIVELY CORRESPONDING IN NUMBER OF SAID TRACES, SAID DETECTORS BEING SPACED A VARYING HORIZONTAL DISTANCES X FROM SAID SOURCE OF SEISMIC ENERGY, COMPRISING A FIRST FUNCTION GENERATOR FOR GENERATING A FIRST ELECTRICAL SIGNAL WHICH VARIES IN ACCORDANCE WITH THE RELATIONSHIP BETWEEN LOG X AND LOG T, A DIFFERENTIATOR, SAID ELECTRICAL SIGNAL BEING APPLIED TO SAID DIFFERENTIATOR TO PRODUCE A SECOND ELECTRICAL SIGNAL REPRESENTATIVE OF THE RATE OF CHANGE OF THE ELECTRICAL SIGNAL APPLIED THERETO, A SECOND FUNCTION GENERATOR, SAID SECOND ELECTRICAL SIGNAL BEING APPLIED TO SAID SECOND FUNCTION GENERATOR FOR PRODUCING A THIRD ELECTRICAL SIGNAL RELATED TO SAID SECOND ELECTRICAL SIGNAL BY B=1-1/N AND
References Cited (Backward Citations)
US2800639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |