Patent US764664A successfully refreshed from Google Patents.
Patent US3208545A successfully refreshed from Google Patents.
US3208545A
Expired / Lapsed
US
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Apparatus for controlling a seismic vibrator
Assignee: ConocoPhillips Co
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Filing: 1959-08-31
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Granted: 1965-09-28
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Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 William E N Doty
- 👤 Milford R Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:04
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A SYSTEM FOR MINIMIZING THE PHASE VARIATIONS BETWEEN A SIGNAL AS RECEIVED AND SAID SIGNAL AS SUBSEQUENTIALLY TRANSMITTED COMPRISING: A FIRST SIGNAL, A TRANSMITTING MEANS, PHASE SHIFTING MEANS CONNECTING SAID FIRST SIGNAL TO SAID TRANSMITTING MEANS, SIGNAL PICKUP MEANS ADAPTED TO DEVELOP A SECOND SIGNAL WHICH CORRESPONDS TO THE SIGNAL TRANSMITTED BY SAID TRANSMITTING MEANS, PHASE COMPARING MEANS CONNECTED TO RECEIVE BOTH SAID FIRST AND SECOND SIGNALS AND TO DEVELOP A THIRD SIGNAL CHARACERISTIC OF THE PHASE DIFFERENCE BETWEEN SAID FIRST AND SECOND SIGNALS, MEANS RECEIVING SAID THRID SIGNAL AND DEVELOPING AN OUTPUT WHICH IS APPLIED TO SAID PHASE SHIFTING MEANS WHEREBY THE PHASE OF SAID SECOND SIGNAL IS VARIED TO CORRESPOND TO THE PHASE OF SAID FIRST SIGNAL.
Claim 2
Independent Claim
119 words
A SYSTEM FOR MINIMIZING THE PHASE VARIATIONS BETWEEN A SIGNAL AS RECEIVED AND SAID SIGNAL AS SUBSEQUENTIALLY TRANSMITTED COMPRISING: A FIRST SIGNAL, A TRANSMITTING MEANS, PHASE SHIFTING MEANS CONNECTING SAID FIRST SIGNAL TO SAID TRANSMITTING MEANS, SIGNAL PICKUP MEANS ADAPTED TO DEVELOP A SECOND SIGNAL WHICH CORRESPONDS TO THE SIGNAL TRANSMITTED BY SAID TRANSMITTING MEANS, PHASE COMPARING MEANS CONNECTED TO RECEIVE BOTH SAID FIRST AND SECOND SIGNALS AND TO DEVELOP A THIRD SIGNAL CHARACERISTIC OF THE PHASE DIFFERENCE BETWEEN SAID FIRST AND SECOND SIGNALS, MEANS RECEIVING SAID THRID SIGNAL AND DEVELOPING AN OUTPUT WHICH IS APPLIED TO SAID PHASE SHIFTING MEANS WHEREBY THE PHASE OF SAID SECOND SIGNAL IS VARIED TO CORRESPOND TO THE PHASE OF SAID FIRST SIGNAL.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |