Patent US3149683A successfully refreshed from Google Patents.
US3149683A
Expired / Lapsed
US
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Geophysical prospecting apparatus
Assignee: Texaco Inc
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Filing: 1957-08-13
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Granted: 1964-09-22
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Expires: 1977-08-13
Abstract
No abstract record available.
Inventors
- 👤 Roy J Clements
- 👤 Burton D Lee
- 👤 Roland B Stelzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:51
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/24; E; E21; E21B; E21B47/00; E21B47/01; E21B47/017; E21B47/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
THE METHOD OF SIMULTANEOUSLY DRILLING AND PROSPECTING A WELL BORE TRAVERSING A SUBSURFACE FORMATION WHICH COMPRISES MOUNTING WITHIN THE LOWER PORTION OF A DRILL STEM OF THE DRILLING APPARATUS A HOUSING CONTAINING MEANS FOR RECEIVING INDICATIONS OF A PHYSICAL VARIABLE IN THE AREA OF SAID WELL BORE AND ROTATING SAID DRILL STEM WHILE ISOLATING SAID MEANS CONTAINED WITHIN SAID HOUSING FROM ROTATIONAL FORCES IN SAID DRILL STEM DURING THE DRILL-
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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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |