Patent US3205433A successfully refreshed from Google Patents.
US3205433A
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Electrical logging system for establishing a plurality of electrical fields, sampling the established fields and transmitting the samples on a timesharing basis
Assignee: Dresser Industries Inc
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Filing: 1958-06-20
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Granted: 1965-09-07
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Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jefferson P Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:37
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
APPARATUS FOR ELECTRICALLY LOGGING OIL WELLS OR THE LIKE, COMPRISING, IN COMBINATION, A CABLE HAVING A PLURALITY OF CONDUCTORS INCLUDING AT LEAST ONEE CURRENT CONDUCTOR AND AT LEAST ONE SIGNAL CONDUCTOR; EQUIPMENT MOUNTED ON SAID CABLE TO BE LOWERED INTO THE BOREHOLE, SAID EQUIPMENT INCLUDING AT LEAST THREE SIGNAL COLLECTING MEANS ASSOCIATED WITH SAID SIGNAL CONDUCTOR; MEANS FOR APPLYING CURRENT THROUGH SAID CURRENT CONDUCTOR; SWITCHING MEANS FOR SERIALLY CONNECTING SAID SIGNAL CONDUCTOR TO EACH OF
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |