Patent US3100259A successfully refreshed from Google Patents.
US3100259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive well logging
Assignee: Texaco Inc
•
Filing: 1959-05-07
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Granted: 1963-08-06
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Expires: 1979-05-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Allen
- 👤 Jr Hugh E Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
APPARATUS FOR LOGGING A ZONE OF INTEREST IN A HIGH PRESSURE WELL COMPRISING MEANS FOR PROVIDING A LOW PRESSURE PASSAGEWAY FROM THE MOUTH OF THE WELL THROUGH A HIGH PRESSURE SEAL AT THE WELL HEAD TO A POINT BELOW THE ZONE OF INTEREST, A LOGGING UNIT, MEANS FOR MOVING THE
Claim 2
Dependent Claim
50 words
APPARATUS FOR LOGGING A ZONE OF INTEREST IN A HIGH PRESSURE WELL COMPRISING MEANS FOR PROVIDING A LOW PRESSURE PASSAGEWAY FROM THE MOUTH OF THE WELL THROUGH A HIGH PRESSURE SEAL AT THE WELL HEAD TO A POINT BELOW THE ZONE OF INTEREST, A LOGGING UNIT, MEANS FOR MOVING THE
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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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |