Patent US3333239A successfully refreshed from Google Patents.
US3333239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subsurface signaling technique
Assignee: Pan American Petroleum Corp
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Filing: 1965-12-16
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Granted: 1967-07-25
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Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Silverman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:22
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/14; E21B47/16; E21B47/125; G; G01; G01V; G01V3/00; G01V3/18; G01V3/34; G11; G11B; G11B5/00; G11B5/02; G11B5/09; G11B5/48; G11B5/49; G11B7/00; G11B7/002; G11B7/003; G11B7/0031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A PROCESS FOR TELEMETERING PARAMETER DATA OVER A NOISY TRANSMISSION PATH FROM A SINGLE TRANSMITTING POINT IN THE EARTH TO A SINGLE RECEIVING POINT, COMPRISING: MEASURING A PARAMETER WITHIN A PRESELECTED RANGE OF VALUES TO DETERMINE THE MEASURED VALUE, COMPARING THIS MEASURED VALUE WITH A PLURALITY OF SPECIFIED VALUES WITHIN SAID RANGE TO DETERMINED THAT ONE OF SAID PLURALITY OF SPECIFIED VALUES CORRESPONDS MOST CLOSELY WITH SAID MEASURED VALUE, SELECTING ONE OF A PRESELECTED PLURALITY OF UNIQUE SOURCE SIGNALS CORRESPONDING IN NUMBER TO SAID PLURALITY OF SPECIFIED VALUES, SAID SELECTED ONE OF SAID SOURCE SIGNALS BEING UNIQUELY RELATED TO SAID ONE OF SAID PLURALITY OF SPECIFIED VALUES, TRANSMITTING SAID SELECTED SOURCE SIGNAL OVER SAID PATH, RECEIVING SAID TRANSMITTED SIGNAL, CORRELATING THE RECEIVED SIGNAL INDIVIDUALLY WITH A REPLICA OF EACH OF SAID PLURALITY OF UNIQUE SOURCE SIGNALS, PRODUCING AN OUTPUT INDICATION OF EACH SUCH PLURALITY OF CORRELATION, AND DETERMINING WHICH OF SAID PLURALITY OF SAID CORRELATION OUTPUTS IS THE LARGEST, WHEREBY IT IS DETERMINED WHICH OF SAID PLURALITY OF UNIQUE SOURCE SIGNALS WAS TRANSMITTED OVER SAID PATH.
Claim 2
Dependent Claim
176 words
A PROCESS FOR TELEMETERING PARAMETER DATA OVER A NOISY TRANSMISSION PATH FROM A SINGLE TRANSMITTING POINT IN THE EARTH TO A SINGLE RECEIVING POINT, COMPRISING: MEASURING A PARAMETER WITHIN A PRESELECTED RANGE OF VALUES TO DETERMINE THE MEASURED VALUE, COMPARING THIS MEASURED VALUE WITH A PLURALITY OF SPECIFIED VALUES WITHIN SAID RANGE TO DETERMINED THAT ONE OF SAID PLURALITY OF SPECIFIED VALUES CORRESPONDS MOST CLOSELY WITH SAID MEASURED VALUE, SELECTING ONE OF A PRESELECTED PLURALITY OF UNIQUE SOURCE SIGNALS CORRESPONDING IN NUMBER TO SAID PLURALITY OF SPECIFIED VALUES, SAID SELECTED ONE OF SAID SOURCE SIGNALS BEING UNIQUELY RELATED TO SAID ONE OF SAID PLURALITY OF SPECIFIED VALUES, TRANSMITTING SAID SELECTED SOURCE SIGNAL OVER SAID PATH, RECEIVING SAID TRANSMITTED SIGNAL, CORRELATING THE RECEIVED SIGNAL INDIVIDUALLY WITH A REPLICA OF EACH OF SAID PLURALITY OF UNIQUE SOURCE SIGNALS, PRODUCING AN OUTPUT INDICATION OF EACH SUCH PLURALITY OF CORRELATION, AND DETERMINING WHICH OF SAID PLURALITY OF SAID CORRELATION OUTPUTS IS THE LARGEST, WHEREBY IT IS DETERMINED WHICH OF SAID PLURALITY OF UNIQUE SOURCE SIGNALS WAS TRANSMITTED OVER SAID PATH.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |