US3134958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic corrections
Assignee: Jersey Production Research Co
•
Filing: 1959-04-30
•
Granted: 1964-05-26
•
Expires: 1979-04-30
Abstract
No abstract record available.
Inventors
- 👤 Kay N Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:22
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/362; G01V2210/00; G01V2210/50; G01V2210/52; G01V2210/53
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A SYSTEM FOR PRODUCING A CORRECTION VOLTAGE FOR USE IN A SYSTEM FOR REPRODUCING SEISMIC SIGNALS FROM A REPRODUCIBLE MEDIUM BY MOVING A REPRODUCIBLE HEAD RELATIVE TO THE RECORDING MEDIUM WHICH COMPRISES: AN OSCILLATOR; A PHASE SHIFTER FOR SHIFTING THE PHASE OF THE OUTPUT OF SAID OSCILLATOR BY 90*; A FIRST POTENTIOMETER ELECTRICALLY CONNECTED TO THE OUTPUT OF SAID PHASE SHIFTER; A SECOND POTENTIOMETER ELECTRICALLY CONNECTED TO THE OUTPUT OF SAID OSCILLATOR; ADDING MEANS TO ADD THE OUTPUT FROM SAID FIRST AND SAID SECOND POTENTIOMETERS; AND MEANS TO DETECT THE PHASE OF THE OUTPUT OF SAID ADDING MEANS AND THE OUTPUT OF SAID OSCILLATOR.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |