Patent US3469697A successfully refreshed from Google Patents.
Patent US687501A successfully refreshed from Google Patents.
Patent US3254221A successfully refreshed from Google Patents.
US3254221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated gamma-gamma borehole logging apparatus
Assignee: Schlumberger Well Surveying Corp
•
Filing: 1965-01-04
•
Granted: 1966-05-31
•
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 11:29
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)
US1966567A
Cited
US2469461A
Cited
US2648778A
Cited
US2876413A
Cited
US2969087A
Cited
US2948262A
Cited
US3015310A
Cited
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 |