US3315224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control system for borehole logging devices
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1964-09-01
•
Granted: 1967-04-18
•
Expires: 1984-09-01
Abstract
No abstract record available.
Inventors
- 👤 Paul M Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:37
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A RECORDER FOR USE WITH A DRILL STRING IN THE DRILLING OF BOREHOLES IN THE EARTH WHICH COMPRISES: A CONTROL SIGNAL SOURCE; A POWER AMPLIFIER HAVING A GROUND TERMINAL AND A SECOND TERMINAL; FIRST CIRCUIT MEANS CONNECTING SAID POWER AMPLIFIER TO SAID CONTROL SIGNAL SOURCE; SECOND CIRCUIT MEANS CONNECTING THE GROUND TERMINAL OF SAID POWER AMPLIFIER TO THE EARTH; THIRD CIRCUIT MEANS INCLUDING A SWITCH CONNECTING THE SECOND TERMINAL OF SAID POWER AMPLIFIER TO SAID DRILL STRING; A SUB INSERTABLE WITHIN SAID DRILL STRING; A SIGNAL DETECTING MEANS SUPPORTED WITHIN SAID SUB, SAID SIGNAL DETECTING MEANS INCLUDING A CONDUCTING BUTTON SUPPORTED AT THE EXTERIOR OF SAID SUB AND INSULATED THEREFROM, FOURTH CIRCUIT MEANS CONNECTING SAID BUTTON AND SAID DRILL STRING AND INCLUDING AN AM-
Claim 2
Dependent Claim
124 words
A RECORDER FOR USE WITH A DRILL STRING IN THE DRILLING OF BOREHOLES IN THE EARTH WHICH COMPRISES: A CONTROL SIGNAL SOURCE; A POWER AMPLIFIER HAVING A GROUND TERMINAL AND A SECOND TERMINAL; FIRST CIRCUIT MEANS CONNECTING SAID POWER AMPLIFIER TO SAID CONTROL SIGNAL SOURCE; SECOND CIRCUIT MEANS CONNECTING THE GROUND TERMINAL OF SAID POWER AMPLIFIER TO THE EARTH; THIRD CIRCUIT MEANS INCLUDING A SWITCH CONNECTING THE SECOND TERMINAL OF SAID POWER AMPLIFIER TO SAID DRILL STRING; A SUB INSERTABLE WITHIN SAID DRILL STRING; A SIGNAL DETECTING MEANS SUPPORTED WITHIN SAID SUB, SAID SIGNAL DETECTING MEANS INCLUDING A CONDUCTING BUTTON SUPPORTED AT THE EXTERIOR OF SAID SUB AND INSULATED THEREFROM, FOURTH CIRCUIT MEANS CONNECTING SAID BUTTON AND SAID DRILL STRING AND INCLUDING AN AM-
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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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |