Patent US1358968A successfully refreshed from Google Patents.
US3254221A
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Articulated gamma-gamma borehole logging apparatus
Assignee: Schlumberger Well Surveying Corp
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Filing: 1965-01-04
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Granted: 1966-05-31
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Dean F Saurenman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:51
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
RADIOACTIVITY LOGGING APPARATUS COMPRISING AN ELONGATED MAIN HOUSING ADAPTED FOR CONNECTION WITH A CABLE TO BE MOVED THROUGH A WELL, A SKID HOUSING, LINK MEANS PROVIDING SAID SKID HOUSING WITH A DOUBLY ARTICULATED CONNECTION WITH SAID HOUSING THROUGH A SINGLE SUPPORTING PIVOT THEREON, A GAMMA RAY SOURCE AND A GAMMA RAY DETECTOR SUPPORTED WITHIN SAID SKID HOUSING IN SPACED SHIELDED RELATION FROM ONE ANOTHER, A BACK-UP SHOE MOVABLY CARRIED BY SAID SKID HOUSING SO AS TO BE
Claim 2
Dependent Claim
77 words
RADIOACTIVITY LOGGING APPARATUS COMPRISING AN ELONGATED MAIN HOUSING ADAPTED FOR CONNECTION WITH A CABLE TO BE MOVED THROUGH A WELL, A SKID HOUSING, LINK MEANS PROVIDING SAID SKID HOUSING WITH A DOUBLY ARTICULATED CONNECTION WITH SAID HOUSING THROUGH A SINGLE SUPPORTING PIVOT THEREON, A GAMMA RAY SOURCE AND A GAMMA RAY DETECTOR SUPPORTED WITHIN SAID SKID HOUSING IN SPACED SHIELDED RELATION FROM ONE ANOTHER, A BACK-UP SHOE MOVABLY CARRIED BY SAID SKID HOUSING SO AS TO BE
References Cited (Backward Citations)
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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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |